Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3034 USN-5070-1: Linux kernel vulnerabilities 9 September 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Overwrite Arbitrary Files -- Existing Account Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-38207 CVE-2021-38206 CVE-2021-38200 CVE-2021-38198 CVE-2021-38160 CVE-2021-34693 CVE-2021-22543 CVE-2021-3656 CVE-2021-3653 CVE-2021-3612 CVE-2020-36311 CVE-2020-26541 Reference: ESB-2021.3017 ESB-2021.2805 ESB-2021.2764 ESB-2021.2717 ESB-2021.2437 Original Bulletin: https://ubuntu.com/security/notices/USN-5070-1 https://ubuntu.com/security/notices/USN-5071-1 https://ubuntu.com/security/notices/USN-5072-1 https://ubuntu.com/security/notices/USN-5073-1 Comment: This bulletin contains four (4) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5070-1: Linux kernel vulnerabilities 08 September 2021 Several security issues were fixed in the Linux kernel. Releases o Ubuntu 21.04 o Ubuntu 20.04 LTS Packages o linux - Linux kernel o linux-aws - Linux kernel for Amazon Web Services (AWS) systems o linux-aws-5.11 - Linux kernel for Amazon Web Services (AWS) systems o linux-azure - Linux kernel for Microsoft Azure Cloud systems o linux-azure-5.11 - Linux kernel for Microsoft Azure cloud systems o linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems o linux-hwe-5.11 - Linux hardware enablement (HWE) kernel o linux-kvm - Linux kernel for cloud environments o linux-oracle - Linux kernel for Oracle Cloud systems o linux-oracle-5.11 - Linux kernel for Oracle Cloud systems o linux-raspi - Linux kernel for Raspberry Pi (V8) systems Details Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. ( CVE-2021-3656 ) Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. ( CVE-2021-3653 ) It was discovered that the Linux kernel did not properly enforce certain types of entries in the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. An attacker could use this to bypass UEFI Secure Boot restrictions. ( CVE-2020-26541 ) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to expose sensitive information or execute arbitrary code. ( CVE-2021-22543 ) Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). ( CVE-2021-34693 ) Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. ( CVE-2021-3612 ) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly compute the access permissions for shadow pages in some situations. A local attacker could use this to cause a denial of service. ( CVE-2021-38198 ) It was discovered that the perf subsystem in the Linux kernel for the PowerPC architecture contained a null pointer dereference in some situations. An attacker could use this to cause a denial of service (system crash). ( CVE-2021-38200 ) Ben Greear discovered that the mac80211 subsystem in the Linux kernel contained a null pointer dereference in some situations. A physically proximate attacker could possibly use this to cause a denial of service (system crash). ( CVE-2021-38206 ) It was discovered that the Xilinx LL TEMAC device driver in the Linux kernel did not properly calculate the number of buffers to be used in certain situations. A remote attacker could use this to cause a denial of service (system crash). ( CVE-2021-38207 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04 o linux-image-5.11.0-34-generic - 5.11.0-34.36 o linux-image-5.11.0-34-lowlatency - 5.11.0-34.36 o linux-image-virtual - 5.11.0.34.36 o linux-image-5.11.0-1017-aws - 5.11.0-1017.18 o linux-image-generic - 5.11.0.34.36 o linux-image-aws - 5.11.0.1017.18 o linux-image-5.11.0-1015-kvm - 5.11.0-1015.16 o linux-image-5.11.0-1017-raspi - 5.11.0-1017.18 o linux-image-5.11.0-1017-oracle - 5.11.0-1017.18 o linux-image-5.11.0-34-generic-lpae - 5.11.0-34.36 o linux-image-5.11.0-1017-raspi-nolpae - 5.11.0-1017.18 o linux-image-azure - 5.11.0.1015.16 o linux-image-raspi-nolpae - 5.11.0.1017.15 o linux-image-oem-20.04 - 5.11.0.34.36 o linux-image-gke - 5.11.0.1018.18 o linux-image-gcp - 5.11.0.1018.18 o linux-image-5.11.0-1018-gcp - 5.11.0-1018.20 o linux-image-oracle - 5.11.0.1017.18 o linux-image-raspi - 5.11.0.1017.15 o linux-image-5.11.0-34-generic-64k - 5.11.0-34.36 o linux-image-5.11.0-1015-azure - 5.11.0-1015.16 o linux-image-kvm - 5.11.0.1015.16 o linux-image-generic-lpae - 5.11.0.34.36 o linux-image-generic-64k - 5.11.0.34.36 o linux-image-lowlatency - 5.11.0.34.36 Ubuntu 20.04 o linux-image-5.11.0-34-generic - 5.11.0-34.36~20.04.1 o linux-image-5.11.0-1017-aws - 5.11.0-1017.18~20.04.1 o linux-image-aws - 5.11.0.1017.18~20.04.16 o linux-image-lowlatency-hwe-20.04 - 5.11.0.34.36~20.04.13 o linux-image-5.11.0-1017-oracle - 5.11.0-1017.18~20.04.1 o linux-image-5.11.0-34-generic-lpae - 5.11.0-34.36~20.04.1 o linux-image-generic-hwe-20.04 - 5.11.0.34.36~20.04.13 o linux-image-5.11.0-34-lowlatency - 5.11.0-34.36~20.04.1 o linux-image-5.11.0-34-generic-64k - 5.11.0-34.36~20.04.1 o linux-image-oracle - 5.11.0.1017.18~20.04.10 o linux-image-generic-lpae-hwe-20.04 - 5.11.0.34.36~20.04.13 o linux-image-generic-64k-hwe-20.04 - 5.11.0.34.36~20.04.13 o linux-image-5.11.0-1015-azure - 5.11.0-1015.16~20.04.1 o linux-image-virtual-hwe-20.04 - 5.11.0.34.36~20.04.13 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References o CVE-2021-3612 o CVE-2021-38198 o CVE-2021-22543 o CVE-2021-38206 o CVE-2021-34693 o CVE-2021-3656 o CVE-2021-3653 o CVE-2021-38207 o CVE-2021-38200 o CVE-2020-26541 Related notices o USN-5045-1 : linux-cloud-tools-virtual-hwe-18.04-edge, linux-headers-aws, linux-gcp-edge, linux-image-5.4.0-1022-gkeop, linux-gke-5.4, linux-headers-oem, linux-generic-lpae-hwe-18.04, linux-gcp-lts-20.04, linux-image-generic, linux-raspi-hwe-18.04-edge, linux-signed-image-oracle-edge, linux-headers-generic-lpae-hwe-18.04, linux-headers-5.4.0-1042-raspi, linux-tools-gke, linux-tools-5.4.0-1055-aws, linux-azure-cloud-tools-5.4.0-1056, linux-aws-headers-5.4.0-1055, linux-generic-hwe-18.04-edge, linux-kvm-headers-5.4.0-1045, linux-hwe-5.4, linux-gke-headers-5.4.0-1051, linux-tools-gcp-edge, linux-lowlatency, linux-image-snapdragon-hwe-18.04, linux-image-virtual-hwe-18.04, linux-cloud-tools-azure-lts-20.04, linux-cloud-tools-virtual, linux-gkeop-cloud-tools-5.4.0-1022, linux-modules-extra-gke-5.4, linux-modules-5.4.0-1051-gke, linux-gcp-5.4-headers-5.4.0-1051, linux-oracle-5.4, linux-image-5.4.0-1056-azure, linux-modules-5.4.0-81-generic-lpae, linux-raspi-5.4, linux-azure-headers-5.4.0-1056, linux-aws-edge, linux-modules-extra-gkeop, linux-modules-extra-gcp-lts-20.04, linux-tools-5.4.0-1042-raspi, linux-tools-generic-lpae-hwe-18.04-edge, linux-image-5.4.0-81-generic, linux-gcp-headers-5.4.0-1051, linux-image-generic-lpae-hwe-18.04, linux-headers-virtual-hwe-18.04-edge, linux-tools-kvm, linux-signed-image-azure, linux-headers-azure, linux-headers-5.4.0-1053-oracle, linux-image-5.4.0-1051-gcp, linux-oracle-edge, linux-tools-host, linux-image-gke, linux-tools-5.4.0-1051-gcp, linux-aws-5.4-headers-5.4.0-1055, linux-modules-extra-5.4.0-1056-azure, linux-headers-gkeop, linux-image-gke-5.4, linux-azure-5.4-cloud-tools-5.4.0-1056, linux-azure, linux-gke, linux-image-unsigned-5.4.0-81-generic, linux-image-raspi2-hwe-18.04-edge, linux-headers-generic-hwe-18.04-edge, linux-tools-gcp-lts-20.04, linux-cloud-tools-azure-edge, linux-oracle-headers-5.4.0-1053, linux-modules-extra-5.4.0-1051-gcp, linux-tools-azure-edge, linux-image-snapdragon-hwe-18.04-edge, linux-headers-5.4.0-1022-gkeop, linux-modules-extra-aws-lts-20.04, linux-buildinfo-5.4.0-81-lowlatency, linux-tools-5.4.0-81-lowlatency, linux-headers-generic, linux-tools-gkeop-5.4, linux-virtual-hwe-18.04-edge, linux-azure-5.4-tools-5.4.0-1056, linux-cloud-tools-common, linux-tools-raspi2-hwe-18.04, linux-image-gkeop, linux-tools-5.4.0-81-generic, linux-oracle-5.4-tools-5.4.0-1053, linux-cloud-tools-lowlatency-hwe-18.04, linux-image-lowlatency, linux-buildinfo-5.4.0-1051-gke, linux-headers-5.4.0-81-generic-lpae, linux-cloud-tools-lowlatency, linux-modules-extra-5.4.0-81-generic, linux-tools-5.4.0-81, linux-raspi2-hwe-18.04, linux-tools-5.4.0-1022-gkeop, linux-azure-edge, linux-tools-aws-lts-20.04, linux-buildinfo-5.4.0-1051-gcp, linux-image-gcp, linux-modules-extra-azure-lts-20.04, linux-oem, linux-modules-extra-oracle-edge, linux-image-unsigned-5.4.0-1022-gkeop, linux-cloud-tools-5.4.0-1022-gkeop, linux-modules-extra-gcp-edge, linux-raspi-tools-5.4.0-1042, linux-tools-generic-hwe-18.04-edge, linux-lowlatency-hwe-18.04, linux-modules-5.4.0-1051-gcp, linux-headers-5.4.0-1051-gke, linux-headers-gke-5.4, linux-hwe-5.4-source-5.4.0, linux-gke-5.4-tools-5.4.0-1051, linux-cloud-tools-generic, linux-tools-virtual-hwe-18.04-edge, linux-tools-5.4.0-1053-oracle, linux-cloud-tools-5.4.0-81, linux-tools-oracle-lts-20.04, linux-modules-extra-gkeop-5.4, linux-modules-5.4.0-1042-raspi, linux-image-extra-virtual-hwe-18.04, linux-image-oracle-edge, linux-headers-oem-osp1, linux-headers-gkeop-5.4, linux-tools-raspi-hwe-18.04, linux-snapdragon-hwe-18.04, linux-gkeop-5.4-tools-5.4.0-1022, linux-headers-generic-lpae, linux-tools-raspi-hwe-18.04-edge, linux-tools-azure-lts-20.04, linux-tools-aws, linux-cloud-tools-virtual-hwe-18.04, linux-cloud-tools-gkeop-5.4, linux-cloud-tools-lowlatency-hwe-18.04-edge, linux-signed-oracle, linux-headers-aws-edge, linux-image-gcp-lts-20.04, linux-cloud-tools-generic-hwe-18.04, linux-oracle-5.4-headers-5.4.0-1053, linux-cloud-tools-5.4.0-1056-azure, linux-image-gcp-edge, linux-headers-aws-lts-20.04, linux-signed-image-oracle, linux-image-5.4.0-1051-gke, linux-image-oracle-lts-20.04, linux-image-raspi-hwe-18.04, linux-tools-generic, linux-tools-gkeop, linux-hwe-5.4-tools-5.4.0-81, linux-headers-snapdragon-hwe-18.04, linux-aws-5.4-tools-5.4.0-1055, linux-azure-5.4-headers-5.4.0-1056, linux-headers-gcp-lts-20.04, linux-headers-azure-edge, linux-raspi-5.4-tools-5.4.0-1042, linux-headers-5.4.0-1056-azure, linux-image-lowlatency-hwe-18.04, linux-tools-generic-hwe-18.04, linux-modules-extra-gcp, linux-gcp-tools-5.4.0-1051, linux-headers-generic-hwe-18.04, linux-oracle, linux-oracle-lts-20.04, linux-raspi-headers-5.4.0-1042, linux-image-azure, linux-libc-dev, linux-image-oracle, linux-image-oem, linux-modules-extra-virtual-hwe-18.04-edge, linux-image-5.4.0-81-lowlatency, linux-crashdump, linux-kvm, linux-aws-cloud-tools-5.4.0-1055, linux-aws-5.4-cloud-tools-5.4.0-1055, linux-modules-extra-5.4.0-1053-oracle, linux-generic-hwe-18.04, linux-image-azure-lts-20.04, linux-raspi-hwe-18.04, linux-headers-snapdragon-hwe-18.04-edge, linux-tools-oracle, linux-image-extra-virtual-hwe-18.04-edge, linux-buildinfo-5.4.0-1056-azure, linux-headers-lowlatency-hwe-18.04, linux-oem-tools-host, linux-aws-5.4, linux-raspi2, linux-gcp-5.4-tools-5.4.0-1051, linux-image-gkeop-5.4, linux-headers-oracle-lts-20.04, linux-modules-extra-5.4.0-1055-aws, linux-cloud-tools-generic-hwe-18.04-edge, linux-oem-osp1, linux-modules-extra-virtual-hwe-18.04, linux-gkeop, linux-tools-lowlatency-hwe-18.04-edge, linux-modules-5.4.0-1056-azure, linux-tools-gke-5.4, linux-image-unsigned-5.4.0-1053-oracle, linux-image-azure-edge, linux-buildinfo-5.4.0-81-generic, linux-source, linux-image-5.4.0-1053-oracle, linux-image-aws-edge, linux-modules-extra-oracle, linux-buildinfo-5.4.0-1055-aws, linux-generic-lpae-hwe-18.04-edge, linux-tools-azure, linux-modules-5.4.0-1022-gkeop, linux-modules-extra-azure, linux-headers-raspi2-hwe-18.04-edge, linux-tools-lowlatency-hwe-18.04, linux-tools-common, linux-image-virtual, linux-headers-azure-lts-20.04, linux-tools-oracle-edge, linux-azure-5.4, linux-headers-oracle, linux-tools-5.4.0-81-generic-lpae, linux-tools-virtual-hwe-18.04, linux-headers-raspi-hwe-18.04, linux-raspi2-hwe-18.04-edge, linux-signed-image-azure-edge, linux-hwe-5.4-cloud-tools-common, linux-gke-tools-5.4.0-1051, linux-tools-snapdragon-hwe-18.04-edge, linux-gkeop-5.4-source-5.4.0, linux-image-generic-lpae-hwe-18.04-edge, linux-oem-osp1-tools-host, linux-gke-5.4-headers-5.4.0-1051, linux-gkeop-source-5.4.0, linux-image-oem-osp1, linux-modules-extra-gke, linux-headers-5.4.0-81-generic, linux-image-unsigned-5.4.0-1051-gke, linux-hwe-5.4-tools-common, linux-image-generic-hwe-18.04-edge, linux-tools-snapdragon-hwe-18.04, linux-headers-5.4.0-1051-gcp, linux-headers-generic-lpae-hwe-18.04-edge, linux-image-5.4.0-81-generic-lpae, linux-aws-tools-5.4.0-1055, linux-modules-extra-5.4.0-1022-gkeop, linux-buildinfo-5.4.0-81-generic-lpae, linux-cloud-tools-5.4.0-1055-aws, linux-source-5.4.0, linux-gkeop-headers-5.4.0-1022, linux-headers-lowlatency, linux-modules-5.4.0-1055-aws, linux-gcp, linux-tools-lowlatency, linux-image-raspi2, linux-generic, linux-image-virtual-hwe-18.04-edge, linux-headers-5.4.0-1045-kvm, linux-signed-azure, linux-tools-5.4.0-1051-gke, linux-cloud-tools-azure, linux-tools-5.4.0-1056-azure, linux-image-5.4.0-1055-aws, linux-doc, linux-modules-5.4.0-81-lowlatency, linux-cloud-tools-gkeop, linux-headers-gcp-edge, linux-modules-extra-5.4.0-1051-gke, linux-headers-5.4.0-81-lowlatency, linux-modules-extra-aws-edge, linux-virtual, linux-image-5.4.0-1042-raspi, linux-kvm-tools-5.4.0-1045, linux-tools-gcp, linux-image-generic-hwe-18.04, linux-headers-gke, linux-raspi-5.4-headers-5.4.0-1042, linux-raspi, linux-generic-lpae, linux-headers-raspi2-hwe-18.04, linux-gkeop-5.4, linux-headers-5.4.0-81, linux-image-raspi2-hwe-18.04, linux-oracle-tools-5.4.0-1053, linux-tools-generic-lpae-hwe-18.04, linux-headers-oracle-edge, linux-image-raspi, linux-image-unsigned-5.4.0-81-lowlatency, linux-image-kvm, linux-headers-virtual, linux-snapdragon-hwe-18.04-edge, linux-headers-lowlatency-hwe-18.04-edge, linux-headers-kvm, linux-image-raspi-hwe-18.04-edge, linux-buildinfo-5.4.0-1022-gkeop, linux-modules-extra-azure-edge, linux-tools-virtual, linux-tools-generic-lpae, linux-image-aws, linux-signed-azure-edge, linux-buildinfo-5.4.0-1042-raspi, linux-gkeop-5.4-cloud-tools-5.4.0-1022, linux-image-unsigned-5.4.0-1056-azure, linux-signed-oracle-edge, linux-headers-gcp, linux-image-extra-virtual, linux-azure-lts-20.04, linux-image-aws-lts-20.04, linux-virtual-hwe-18.04, linux-gkeop-5.4-headers-5.4.0-1022, linux-hwe-5.4-headers-5.4.0-81, linux-tools-oem, linux-tools-aws-edge, linux-gkeop-tools-5.4.0-1022, linux-image-generic-lpae, linux-modules-5.4.0-1045-kvm, linux-tools-5.4.0-1045-kvm, linux-cloud-tools-5.4.0-81-lowlatency, linux-headers-raspi2, linux-buildinfo-5.4.0-1053-oracle, linux-image-unsigned-5.4.0-1051-gcp, linux-tools-raspi2, linux-cloud-tools-5.4.0-81-generic, linux-tools-raspi2-hwe-18.04-edge, linux, linux-image-lowlatency-hwe-18.04-edge, linux-hwe-5.4-cloud-tools-5.4.0-81, linux-modules-5.4.0-1053-oracle, linux-azure-tools-5.4.0-1056, linux-lowlatency-hwe-18.04-edge, linux-tools-oem-osp1, linux-headers-raspi-hwe-18.04-edge, linux-aws, linux-buildinfo-5.4.0-1045-kvm, linux-headers-virtual-hwe-18.04, linux-headers-5.4.0-1055-aws, linux-image-5.4.0-1045-kvm, linux-modules-extra-aws, linux-aws-lts-20.04, linux-image-unsigned-5.4.0-1045-kvm, linux-headers-raspi, linux-tools-raspi, linux-modules-5.4.0-81-generic, linux-gcp-5.4 o USN-5062-1 : linux-headers-aws, linux-cloud-tools-generic-lts-vivid, linux-generic-lts-wily, linux-headers-generic-lts-xenial, linux-generic-lts-vivid, linux-headers-lowlatency-lts-utopic, linux-headers-virtual-lts-vivid, linux-headers-lowlatency, linux-signed-image-generic, linux-tools-generic-lts-utopic, linux-image-generic, linux-libc-dev, linux-aws-headers-4.4.0-1096, linux-image-hwe-virtual-trusty, linux-image-lowlatency, linux-aws-cloud-tools-4.4.0-1096, linux-hwe-virtual-trusty, linux-tools-lowlatency, linux-generic, linux-headers-4.4.0-214, linux-buildinfo-4.4.0-1096-aws, linux-signed-image-generic-lts-xenial, linux-signed-generic-lts-wily, linux-tools-4.4.0-1132-aws, linux-cloud-tools-lowlatency, linux-modules-4.4.0-214-lowlatency, linux-crashdump, linux-tools-lts-utopic, linux-image-4.4.0-1097-kvm, linux-headers-4.4.0-214-generic, linux-cloud-tools-4.4.0-214, linux-doc, linux-kvm, linux-image-extra-virtual-lts-vivid, linux-lts-xenial-tools-4.4.0-214, linux-modules-4.4.0-1096-aws, linux-tools-4.4.0-214-generic, linux-headers-generic-lts-utopic, linux-lowlatency, linux-virtual-lts-utopic, linux-image-lowlatency-lts-wily, linux-image-generic-lts-vivid, linux-signed-generic, linux-lowlatency-lts-vivid, linux-virtual, linux-buildinfo-4.4.0-1132-aws, linux-headers-4.4.0-1132-aws, linux-tools-generic-lts-xenial, linux-signed-image-lowlatency, linux-tools-lowlatency-lts-utopic, linux-headers-lowlatency-lts-vivid, linux-image-4.4.0-1132-aws, linux-cloud-tools-lowlatency-lts-wily, linux-signed-image-lowlatency-lts-wily, linux-headers-virtual-lts-wily, linux-signed-image-lowlatency-lts-xenial, linux-image-lowlatency-lts-utopic, linux-cloud-tools-virtual-lts-wily, linux-cloud-tools-virtual, linux-modules-extra-4.4.0-214-generic, linux-tools-4.4.0-214, linux-virtual-lts-xenial, linux-tools-virtual-lts-utopic, linux-signed-generic-lts-xenial, linux-image-hwe-generic-trusty, linux-image-virtual-lts-xenial, linux-image-unsigned-4.4.0-214-lowlatency, linux-image-generic-lts-xenial, linux-cloud-tools-4.4.0-1096-aws, linux-cloud-tools-virtual-lts-utopic, linux-lowlatency-lts-wily, linux-kvm-headers-4.4.0-1097, linux-aws-headers-4.4.0-1132, linux-lowlatency-lts-xenial, linux-headers-lowlatency-lts-xenial, linux-cloud-tools-generic, linux-hwe-generic-trusty, linux-cloud-tools-4.4.0-214-lowlatency, linux-tools-4.4.0-1096-aws, linux-aws-tools-4.4.0-1132, linux-headers-generic-lts-wily, linux-modules-4.4.0-214-generic, linux-kvm-cloud-tools-4.4.0-1097, linux-signed-generic-lts-utopic, linux-image-extra-virtual-lts-utopic, linux-cloud-tools-lowlatency-lts-vivid, linux-lts-xenial-cloud-tools-4.4.0-214, linux-aws-cloud-tools-4.4.0-1132, linux-aws-tools-4.4.0-1096, linux-tools-virtual-lts-wily, linux-signed-image-generic-lts-vivid, linux-image-4.4.0-214-lowlatency, linux-tools-generic-lts-wily, linux-headers-4.4.0-214-lowlatency, linux-image-kvm, linux-headers-virtual, linux-headers-kvm, linux-tools-aws, linux-tools-virtual-lts-xenial, linux-tools-kvm, linux-source, linux-tools-virtual, linux-image-extra-virtual-lts-wily, linux-buildinfo-4.4.0-214-generic, linux-image-lowlatency-lts-xenial, linux-image-aws, linux-signed-image-generic-lts-utopic, linux-tools-generic-lts-vivid, linux-generic-lts-xenial, linux-headers-4.4.0-1097-kvm, linux-virtual-lts-wily, linux-cloud-tools-4.4.0-1132-aws, linux-generic-lts-utopic, linux-image-4.4.0-214-generic, linux-tools-host, linux-image-extra-virtual, linux-image-generic-lts-wily, linux-lts-xenial, linux-image-lowlatency-lts-vivid, linux-tools-common, linux-tools-virtual-lts-vivid, linux-cloud-tools-lowlatency-lts-xenial, linux-image-virtual-lts-vivid, linux-image-virtual, linux-modules-extra-4.4.0-1132-aws, linux-cloud-tools-generic-lts-wily, linux-buildinfo-4.4.0-1097-kvm, linux-image-virtual-lts-wily, linux-signed-lowlatency-lts-xenial, linux-cloud-tools-virtual-lts-vivid, linux-modules-4.4.0-1097-kvm, linux-cloud-tools-lowlatency-lts-utopic, linux-modules-4.4.0-1132-aws, linux-tools-lowlatency-lts-xenial, linux-tools-lowlatency-lts-wily, linux-cloud-tools-virtual-lts-xenial, linux-tools-4.4.0-1097-kvm, linux-image-extra-virtual-lts-xenial, linux-headers-generic-lts-vivid, linux-tools-generic, linux-headers-virtual-lts-xenial, linux-lowlatency-lts-utopic, linux-signed-image-generic-lts-wily, linux-headers-4.4.0-1096-aws, linux-signed-generic-lts-vivid, linux, linux-tools-lowlatency-lts-vivid, linux-headers-lowlatency-lts-wily, linux-cloud-tools-4.4.0-214-generic, linux-cloud-tools-generic-lts-utopic, linux-signed-lowlatency-lts-wily, linux-kvm-tools-4.4.0-1097, linux-cloud-tools-4.4.0-1097-kvm, linux-headers-generic, linux-aws, linux-headers-virtual-lts-utopic, linux-image-generic-lts-utopic, linux-image-4.4.0-1096-aws, linux-buildinfo-4.4.0-214-lowlatency, linux-image-virtual-lts-utopic, linux-cloud-tools-generic-lts-xenial, linux-image-unsigned-4.4.0-214-generic, linux-modules-extra-aws, linux-source-4.4.0, linux-signed-lowlatency, linux-cloud-tools-common, linux-virtual-lts-vivid, linux-tools-4.4.0-214-lowlatency o USN-5071-1 : linux-cloud-tools-virtual-hwe-18.04-edge, linux-headers-aws, linux-image-5.4.0-1023-gkeop, linux-headers-generic-hwe-18.04, linux-oracle, linux-oracle-lts-20.04, linux-gcp-edge, linux-source-5.4.0, linux-gke-5.4, linux-headers-lowlatency, linux-image-azure, linux-headers-oem, linux-generic-lpae-hwe-18.04, linux-tools-5.4.0-1052-gke, linux-gke-5.4-tools-5.4.0-1052, linux-gcp-lts-20.04, linux-cloud-tools-lowlatency-hwe-18.04, linux-image-unsigned-5.4.0-1046-kvm, linux-image-generic, linux-libc-dev, linux-cloud-tools-5.4.0-84, linux-image-unsigned-5.4.0-1023-gkeop, linux-image-oracle, linux-image-oem, linux-gcp, linux-image-lowlatency, linux-tools-lowlatency, linux-signed-image-oracle-edge, linux-tools-5.4.0-84-lowlatency, linux-generic, linux-headers-generic-lpae-hwe-18.04, linux-headers-5.4.0-1058-azure, linux-image-5.4.0-84-generic-lpae, linux-image-virtual-hwe-18.04-edge, linux-tools-gke, linux-cloud-tools-lowlatency, linux-crashdump, linux-signed-azure, linux-aws-5.4-cloud-tools-5.4.0-1056, linux-image-5.4.0-1046-kvm, linux-oracle-tools-5.4.0-1054, linux-generic-hwe-18.04-edge, linux-tools-5.4.0-1058-azure, linux-cloud-tools-azure, linux-oracle-5.4-tools-5.4.0-1054, linux-doc, linux-headers-5.4.0-84-generic-lpae, linux-cloud-tools-gkeop, linux-kvm, linux-modules-5.4.0-1058-azure, linux-headers-gcp-edge, linux-modules-5.4.0-1054-oracle, linux-modules-extra-5.4.0-1058-azure, linux-tools-gcp-edge, linux-lowlatency, linux-modules-extra-aws-edge, linux-headers-5.4.0-84-lowlatency, linux-azure-edge, linux-virtual, linux-tools-aws-lts-20.04, linux-generic-hwe-18.04, linux-gkeop-5.4-headers-5.4.0-1023, linux-cloud-tools-5.4.0-84-generic, linux-image-azure-lts-20.04, linux-image-5.4.0-1052-gke, linux-image-unsigned-5.4.0-1052-gcp, linux-buildinfo-5.4.0-1023-gkeop, linux-image-virtual-hwe-18.04, linux-gkeop-5.4-cloud-tools-5.4.0-1023, linux-cloud-tools-azure-lts-20.04, linux-tools-gcp, linux-image-gcp, linux-modules-extra-azure-lts-20.04, linux-oem, linux-gke-5.4-headers-5.4.0-1052, linux-cloud-tools-5.4.0-1023-gkeop, linux-image-5.4.0-1058-azure, linux-modules-extra-oracle-edge, linux-image-generic-hwe-18.04, linux-headers-gke, linux-cloud-tools-virtual, linux-tools-5.4.0-84-generic, linux-tools-oracle, linux-modules-extra-gcp-edge, linux-modules-extra-5.4.0-1054-oracle, linux-modules-extra-gke-5.4, linux-tools-generic-hwe-18.04-edge, linux-lowlatency-hwe-18.04, linux-image-extra-virtual-hwe-18.04-edge, linux-buildinfo-5.4.0-84-lowlatency, linux-modules-5.4.0-84-generic-lpae, linux-oracle-5.4, linux-headers-lowlatency-hwe-18.04, linux-image-5.4.0-1056-aws, linux-oracle-headers-5.4.0-1054, linux-headers-5.4.0-84, linux-headers-gke-5.4, linux-tools-5.4.0-1023-gkeop, linux-generic-lpae, linux-gkeop-5.4, linux-image-5.4.0-1052-gcp, linux-cloud-tools-generic, linux-oem-tools-host, linux-aws-5.4, linux-image-unsigned-5.4.0-1054-oracle, linux-kvm-headers-5.4.0-1046, linux-buildinfo-5.4.0-84-generic-lpae, linux-image-unsigned-5.4.0-1058-azure, linux-oracle-5.4-headers-5.4.0-1054, linux-tools-5.4.0-84, linux-tools-oracle-lts-20.04, linux-headers-5.4.0-1052-gcp, linux-modules-extra-gkeop-5.4, linux-cloud-tools-5.4.0-84-lowlatency, linux-image-extra-virtual-hwe-18.04, linux-aws-edge, linux-tools-5.4.0-1052-gcp, linux-buildinfo-5.4.0-1054-oracle, linux-image-gkeop-5.4, linux-modules-extra-gkeop, linux-image-oracle-edge, linux-modules-extra-gcp-lts-20.04, linux-headers-oem-osp1, linux-image-unsigned-5.4.0-84-lowlatency, linux-modules-5.4.0-1052-gcp, linux-gkeop-headers-5.4.0-1023, linux-image-unsigned-5.4.0-1052-gke, linux-headers-oracle-lts-20.04, linux-tools-5.4.0-1056-aws, linux-headers-gkeop-5.4, linux-tools-generic-lpae-hwe-18.04, linux-headers-oracle-edge, linux-cloud-tools-generic-hwe-18.04-edge, linux-cloud-tools-5.4.0-1056-aws, linux-azure-5.4-headers-5.4.0-1058, linux-oem-osp1, linux-headers-5.4.0-1052-gke, linux-headers-virtual, linux-gkeop, linux-image-kvm, linux-azure-tools-5.4.0-1058, linux-tools-lowlatency-hwe-18.04-edge, linux-headers-generic-lpae, linux-headers-kvm, linux-headers-lowlatency-hwe-18.04-edge, linux-aws-tools-5.4.0-1056, linux-tools-azure-lts-20.04, linux-tools-gke-5.4, linux-tools-aws, linux-tools-generic-lpae-hwe-18.04-edge, linux-image-azure-edge, linux-image-generic-lpae-hwe-18.04, linux-cloud-tools-virtual-hwe-18.04, linux-gke-tools-5.4.0-1052, linux-headers-virtual-hwe-18.04-edge, linux-modules-extra-azure-edge, linux-source, linux-tools-kvm, linux-image-aws-edge, linux-signed-image-azure, linux-modules-extra-oracle, linux-tools-generic-lpae, linux-tools-virtual, linux-gkeop-tools-5.4.0-1023, linux-cloud-tools-gkeop-5.4, linux-image-aws, linux-signed-azure-edge, linux-generic-lpae-hwe-18.04-edge, linux-headers-azure, linux-cloud-tools-lowlatency-hwe-18.04-edge, linux-headers-5.4.0-1056-aws, linux-signed-oracle, linux-gkeop-cloud-tools-5.4.0-1023, linux-tools-azure, linux-signed-oracle-edge, linux-headers-gcp, linux-oracle-edge, linux-buildinfo-5.4.0-1052-gcp, linux-tools-host, linux-image-gke, linux-modules-extra-azure, linux-azure-5.4-cloud-tools-5.4.0-1058, linux-tools-5.4.0-1054-oracle, linux-image-extra-virtual, linux-tools-lowlatency-hwe-18.04, linux-headers-aws-edge, linux-modules-extra-5.4.0-1023-gkeop, linux-azure-lts-20.04, linux-image-aws-lts-20.04, linux-image-gcp-lts-20.04, linux-modules-5.4.0-1052-gke, linux-tools-common, linux-tools-virtual-hwe-18.04-edge, linux-modules-5.4.0-1046-kvm, linux-cloud-tools-generic-hwe-18.04, linux-image-virtual, linux-virtual-hwe-18.04, linux-headers-azure-lts-20.04, linux-headers-gkeop, linux-headers-5.4.0-1023-gkeop, linux-image-gcp-edge, linux-tools-5.4.0-1046-kvm, linux-tools-oracle-edge, linux-azure-5.4, linux-gkeop-5.4-tools-5.4.0-1023, linux-tools-oem, linux-image-gke-5.4, linux-headers-oracle, linux-azure, linux-gcp-headers-5.4.0-1052, linux-headers-aws-lts-20.04, linux-tools-virtual-hwe-18.04, linux-tools-aws-edge, linux-signed-image-oracle, linux-gke, linux-aws-5.4-headers-5.4.0-1056, linux-aws-headers-5.4.0-1056, linux-azure-5.4-tools-5.4.0-1058, linux-image-generic-lpae, linux-headers-generic-hwe-18.04-edge, linux-image-oracle-lts-20.04, linux-signed-image-azure-edge, linux-tools-generic, linux-tools-gcp-lts-20.04, linux-cloud-tools-azure-edge, linux-modules-5.4.0-1056-aws, linux-modules-5.4.0-1023-gkeop, linux-gkeop-5.4-source-5.4.0, linux-buildinfo-5.4.0-1056-aws, linux-image-generic-lpae-hwe-18.04-edge, linux-image-5.4.0-84-lowlatency, linux-oem-osp1-tools-host, linux-tools-gkeop, linux-buildinfo-5.4.0-1052-gke, linux-headers-5.4.0-1054-oracle, linux-buildinfo-5.4.0-1046-kvm, linux-modules-extra-5.4.0-1056-aws, linux-azure-cloud-tools-5.4.0-1058, linux-modules-extra-5.4.0-1052-gcp, linux-azure-headers-5.4.0-1058, linux, linux-gkeop-source-5.4.0, linux-gke-headers-5.4.0-1052, linux-image-lowlatency-hwe-18.04-edge, linux-gcp-5.4-headers-5.4.0-1052, linux-tools-azure-edge, linux-modules-5.4.0-84-lowlatency, linux-lowlatency-hwe-18.04-edge, linux-gcp-tools-5.4.0-1052, linux-aws-cloud-tools-5.4.0-1056, linux-image-5.4.0-84-generic, linux-modules-extra-5.4.0-1052-gke, linux-modules-extra-aws-lts-20.04, linux-tools-oem-osp1, linux-image-oem-osp1, linux-gcp-5.4-tools-5.4.0-1052, linux-headers-gcp-lts-20.04, linux-headers-generic, linux-modules-extra-gke, linux-headers-azure-edge, linux-aws, linux-tools-5.4.0-84-generic-lpae, linux-headers-virtual-hwe-18.04, linux-tools-gkeop-5.4, linux-modules-extra-5.4.0-84-generic, linux-virtual-hwe-18.04-edge, linux-aws-5.4-tools-5.4.0-1056, linux-image-generic-hwe-18.04-edge, linux-headers-5.4.0-84-generic, linux-kvm-tools-5.4.0-1046, linux-image-lowlatency-hwe-18.04, linux-modules-5.4.0-84-generic, linux-modules-extra-aws, linux-aws-lts-20.04, linux-headers-5.4.0-1046-kvm, linux-tools-generic-hwe-18.04, linux-cloud-tools-5.4.0-1058-azure, linux-modules-extra-gcp, linux-image-5.4.0-1054-oracle, linux-cloud-tools-common, linux-headers-generic-lpae-hwe-18.04-edge, linux-image-unsigned-5.4.0-84-generic, linux-buildinfo-5.4.0-84-generic, linux-gcp-5.4, linux-buildinfo-5.4.0-1058-azure, linux-image-gkeop o USN-5072-1 : linux-image-oem-20.04-edge, linux-tools-5.10.0-1045-oem, linux-image-azure, linux-buildinfo-5.10.0-1045-oem, linux-modules-extra-5.8.0-1041-azure, linux-oem-5.10-tools-host, linux-tools-5.8.0-1041-azure, linux-azure-5.8, linux-tools-oem-20.04b, linux-headers-azure, linux-image-5.8.0-1041-azure, linux-tools-azure, linux-modules-5.8.0-1041-azure, linux-azure-5.8-headers-5.8.0-1041, linux-image-oem-20.04b, linux-headers-oem-20.04b, linux-headers-5.8.0-1041-azure, linux-modules-extra-azure, linux-headers-5.10.0-1045-oem, linux-oem-20.04b, linux-headers-oem-20.04, linux-image-unsigned-5.8.0-1041-azure, linux-oem-5.10-headers-5.10.0-1045, linux-cloud-tools-5.8.0-1041-azure, linux-image-oem-20.04, linux-oem-5.10, linux-cloud-tools-azure, linux-buildinfo-5.8.0-1041-azure, linux-tools-oem-20.04-edge, linux-azure-5.8-cloud-tools-5.8.0-1041, linux-image-unsigned-5.10.0-1045-oem, linux-headers-oem-20.04-edge, linux-image-5.10.0-1045-oem, linux-oem-20.04-edge, linux-azure, linux-oem-5.10-tools-5.10.0-1045, linux-oem-20.04, linux-azure-5.8-tools-5.8.0-1041, linux-tools-oem-20.04, linux-modules-5.10.0-1045-oem - ------------------------------------------------------------------------------ USN-5071-1: Linux kernel vulnerabilities 08 September 2021 Several security issues were fixed in the Linux kernel. Releases o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS Packages o linux - Linux kernel o linux-aws - Linux kernel for Amazon Web Services (AWS) systems o linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems o linux-azure - Linux kernel for Microsoft Azure Cloud systems o linux-azure-5.4 - Linux kernel for Microsoft Azure cloud systems o linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems o linux-gcp-5.4 - Linux kernel for Google Cloud Platform (GCP) systems o linux-gke - Linux kernel for Google Container Engine (GKE) systems o linux-gke-5.4 - Linux kernel for Google Container Engine (GKE) systems o linux-gkeop - Linux kernel for Google Container Engine (GKE) systems o linux-gkeop-5.4 - Linux kernel for Google Container Engine (GKE) systems o linux-kvm - Linux kernel for cloud environments o linux-oracle - Linux kernel for Oracle Cloud systems o linux-oracle-5.4 - Linux kernel for Oracle Cloud systems Details Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. ( CVE-2021-3656 ) Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. ( CVE-2021-3653 ) It was discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not ensure enough processing time was given to perform cleanups of large SEV VMs. A local attacker could use this to cause a denial of service (soft lockup). ( CVE-2020-36311 ) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to expose sensitive information or execute arbitrary code. ( CVE-2021-22543 ) Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. ( CVE-2021-3612 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o linux-image-5.4.0-1052-gke - 5.4.0-1052.55 o linux-image-5.4.0-84-generic-lpae - 5.4.0-84.94 o linux-image-5.4.0-1052-gcp - 5.4.0-1052.56 o linux-image-gkeop - 5.4.0.1023.26 o linux-image-virtual - 5.4.0.84.88 o linux-image-generic - 5.4.0.84.88 o linux-image-5.4.0-84-generic - 5.4.0-84.94 o linux-image-5.4.0-1023-gkeop - 5.4.0-1023.24 o linux-image-oem-osp1 - 5.4.0.84.88 o linux-image-5.4.0-1046-kvm - 5.4.0-1046.48 o linux-image-azure-lts-20.04 - 5.4.0.1058.56 o linux-image-5.4.0-1058-azure - 5.4.0-1058.60 o linux-image-gkeop-5.4 - 5.4.0.1023.26 o linux-image-5.4.0-1054-oracle - 5.4.0-1054.58 o linux-image-gcp-lts-20.04 - 5.4.0.1052.62 o linux-image-aws-lts-20.04 - 5.4.0.1056.59 o linux-image-5.4.0-1056-aws - 5.4.0-1056.59 o linux-image-5.4.0-84-lowlatency - 5.4.0-84.94 o linux-image-gke - 5.4.0.1052.62 o linux-image-oracle-lts-20.04 - 5.4.0.1054.54 o linux-image-gke-5.4 - 5.4.0.1052.62 o linux-image-kvm - 5.4.0.1046.45 o linux-image-oem - 5.4.0.84.88 o linux-image-generic-lpae - 5.4.0.84.88 o linux-image-lowlatency - 5.4.0.84.88 Ubuntu 18.04 o linux-image-5.4.0-1052-gke - 5.4.0-1052.55~18.04.1 o linux-image-5.4.0-1052-gcp - 5.4.0-1052.56~18.04.1 o linux-image-5.4.0-1023-gkeop - 5.4.0-1023.24~18.04.1 o linux-image-aws - 5.4.0.1056.39 o linux-image-5.4.0-1058-azure - 5.4.0-1058.60~18.04.1 o linux-image-gkeop-5.4 - 5.4.0.1023.24~18.04.24 o linux-image-5.4.0-1054-oracle - 5.4.0-1054.58~18.04.1 o linux-image-azure - 5.4.0.1058.38 o linux-image-5.4.0-1056-aws - 5.4.0-1056.59~18.04.1 o linux-image-gcp - 5.4.0.1052.38 o linux-image-oracle - 5.4.0.1054.58~18.04.34 o linux-image-gke-5.4 - 5.4.0.1052.55~18.04.17 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References o CVE-2020-36311 o CVE-2021-22543 o CVE-2021-3653 o CVE-2021-3612 o CVE-2021-3656 Related notices o USN-5062-1 : linux-source-4.4.0, linux-signed-lowlatency-lts-wily, linux-cloud-tools-generic-lts-vivid, linux-modules-4.4.0-1097-kvm, linux-headers-lowlatency-lts-xenial, linux-cloud-tools-4.4.0-214-lowlatency, linux-tools-generic-lts-utopic, linux-lowlatency-lts-xenial, linux-headers-virtual-lts-wily, linux-aws-cloud-tools-4.4.0-1096, linux-buildinfo-4.4.0-1096-aws, linux-headers-lowlatency-lts-vivid, linux-image-4.4.0-214-generic, linux-image-generic-lts-utopic, linux-headers-4.4.0-214, linux-virtual-lts-xenial, linux-modules-4.4.0-214-lowlatency, linux-tools-4.4.0-214-lowlatency, linux-tools-virtual-lts-xenial, linux-lts-xenial-tools-4.4.0-214, linux-cloud-tools-lowlatency-lts-wily, linux-headers-generic-lts-wily, linux-generic, linux-tools-host, linux-kvm, linux-signed-image-lowlatency-lts-wily, linux-headers-lowlatency-lts-utopic, linux-cloud-tools-lowlatency-lts-vivid, linux-cloud-tools-lowlatency, linux-libc-dev, linux-image-lowlatency-lts-xenial, linux-tools-virtual-lts-wily, linux-signed-generic, linux-tools-generic-lts-wily, linux-virtual-lts-wily, linux-headers-generic, linux-signed-generic-lts-xenial, linux-cloud-tools-4.4.0-1096-aws, linux-tools-lowlatency-lts-xenial, linux-headers-4.4.0-1097-kvm, linux-headers-lowlatency-lts-wily, linux-virtual-lts-utopic, linux-modules-4.4.0-1096-aws, linux-cloud-tools-generic-lts-utopic, linux-aws-headers-4.4.0-1096, linux-headers-lowlatency, linux-image-hwe-generic-trusty, linux-tools-lowlatency-lts-vivid, linux-headers-4.4.0-1132-aws, linux-cloud-tools-virtual-lts-vivid, linux-cloud-tools-generic, linux-tools-generic, linux-buildinfo-4.4.0-1097-kvm, linux-signed-image-lowlatency, linux-image-extra-virtual, linux-buildinfo-4.4.0-1132-aws, linux-cloud-tools-virtual, linux-modules-extra-4.4.0-214-generic, linux-image-extra-virtual-lts-wily, linux-aws-cloud-tools-4.4.0-1132, linux-kvm-cloud-tools-4.4.0-1097, linux-tools-4.4.0-1097-kvm, linux-tools-lowlatency, linux-headers-generic-lts-xenial, linux-image-4.4.0-1096-aws, linux-generic-lts-wily, linux-buildinfo-4.4.0-214-lowlatency, linux-headers-generic-lts-utopic, linux-cloud-tools-virtual-lts-xenial, linux-virtual, linux-image-generic-lts-xenial, linux-image-4.4.0-1097-kvm, linux-generic-lts-utopic, linux-image-aws, linux-image-virtual, linux-kvm-tools-4.4.0-1097, linux-signed-image-generic-lts-vivid, linux-signed-image-generic-lts-xenial, linux-tools-generic-lts-vivid, linux-lowlatency, linux-tools-lowlatency-lts-utopic, linux-headers-virtual-lts-utopic, linux-image-unsigned-4.4.0-214-generic, linux-signed-image-generic-lts-wily, linux-image-extra-virtual-lts-vivid, linux-hwe-generic-trusty, linux-aws-tools-4.4.0-1132, linux-image-4.4.0-214-lowlatency, linux-aws-tools-4.4.0-1096, linux-tools-lowlatency-lts-wily, linux-headers-aws, linux-image-virtual-lts-vivid, linux-image-lowlatency-lts-wily, linux-cloud-tools-4.4.0-214-generic, linux-headers-4.4.0-214-generic, linux-image-lowlatency, linux-tools-lts-utopic, linux-lowlatency-lts-wily, linux-image-virtual-lts-wily, linux-tools-4.4.0-1096-aws, linux-generic-lts-vivid, linux-lts-xenial, linux-cloud-tools-lowlatency-lts-utopic, linux-image-hwe-virtual-trusty, linux-image-generic-lts-vivid, linux-cloud-tools-lowlatency-lts-xenial, linux-signed-image-generic, linux-image-4.4.0-1132-aws, linux-lowlatency-lts-utopic, linux-doc, linux-cloud-tools-virtual-lts-utopic, linux-image-kvm, linux-cloud-tools-generic-lts-wily, linux-cloud-tools-4.4.0-1097-kvm, linux-lts-xenial-cloud-tools-4.4.0-214, linux-headers-virtual, linux-tools-virtual-lts-utopic, linux-headers-4.4.0-1096-aws, linux-headers-4.4.0-214-lowlatency, linux-cloud-tools-common, linux-modules-4.4.0-214-generic, linux-image-lowlatency-lts-utopic, linux-tools-virtual, linux-headers-virtual-lts-xenial, linux-image-virtual-lts-xenial, linux-tools-aws, linux-signed-generic-lts-wily, linux-virtual-lts-vivid, linux-modules-extra-4.4.0-1132-aws, linux-signed-lowlatency-lts-xenial, linux-image-lowlatency-lts-vivid, linux-source, linux, linux-image-extra-virtual-lts-xenial, linux-image-generic-lts-wily, linux-hwe-virtual-trusty, linux-image-virtual-lts-utopic, linux-image-unsigned-4.4.0-214-lowlatency, linux-headers-virtual-lts-vivid, linux-lowlatency-lts-vivid, linux-signed-generic-lts-utopic, linux-cloud-tools-virtual-lts-wily, linux-buildinfo-4.4.0-214-generic, linux-headers-kvm, linux-tools-generic-lts-xenial, linux-signed-generic-lts-vivid, linux-tools-4.4.0-214, linux-cloud-tools-4.4.0-1132-aws, linux-cloud-tools-4.4.0-214, linux-tools-kvm, linux-generic-lts-xenial, linux-cloud-tools-generic-lts-xenial, linux-modules-4.4.0-1132-aws, linux-image-generic, linux-signed-image-lowlatency-lts-xenial, linux-modules-extra-aws, linux-aws-headers-4.4.0-1132, linux-signed-lowlatency, linux-aws, linux-tools-common, linux-tools-4.4.0-1132-aws, linux-signed-image-generic-lts-utopic, linux-headers-generic-lts-vivid, linux-image-extra-virtual-lts-utopic, linux-crashdump, linux-tools-4.4.0-214-generic, linux-kvm-headers-4.4.0-1097, linux-tools-virtual-lts-vivid o USN-5072-1 : linux-image-5.10.0-1045-oem, linux-headers-5.8.0-1041-azure, linux-image-oem-20.04b, linux-azure-5.8-headers-5.8.0-1041, linux-buildinfo-5.10.0-1045-oem, linux-oem-5.10, linux-image-azure, linux-image-5.8.0-1041-azure, linux-modules-5.10.0-1045-oem, linux-image-oem-20.04, linux-azure, linux-tools-5.8.0-1041-azure, linux-tools-oem-20.04, linux-oem-20.04-edge, linux-headers-5.10.0-1045-oem, linux-azure-5.8, linux-cloud-tools-azure, linux-tools-azure, linux-modules-extra-5.8.0-1041-azure, linux-azure-5.8-cloud-tools-5.8.0-1041, linux-image-unsigned-5.10.0-1045-oem, linux-oem-20.04b, linux-cloud-tools-5.8.0-1041-azure, linux-oem-20.04, linux-oem-5.10-tools-host, linux-tools-oem-20.04b, linux-tools-5.10.0-1045-oem, linux-headers-azure, linux-buildinfo-5.8.0-1041-azure, linux-modules-5.8.0-1041-azure, linux-oem-5.10-headers-5.10.0-1045, linux-headers-oem-20.04, linux-oem-5.10-tools-5.10.0-1045, linux-tools-oem-20.04-edge, linux-image-oem-20.04-edge, linux-azure-5.8-tools-5.8.0-1041, linux-modules-extra-azure, linux-image-unsigned-5.8.0-1041-azure, linux-headers-oem-20.04-edge, linux-headers-oem-20.04b o USN-5070-1 : linux-hwe-5.11-cloud-tools-5.11.0-34, linux-cloud-tools-5.11.0-1017-aws, linux-image-5.11.0-1015-kvm, linux-generic-64k-hwe-20.04, linux-buildinfo-5.11.0-1017-raspi, linux-headers-generic-lpae, linux-modules-5.11.0-34-generic-64k, linux-headers-lowlatency-hwe-20.04, linux-buildinfo-5.11.0-1015-azure, linux-headers-generic-64k-hwe-20.04-edge, linux-headers-5.11.0-1017-oracle, linux-tools-raspi-nolpae, linux-tools-azure, linux-buildinfo-5.11.0-34-generic-64k, linux-generic-lpae-hwe-20.04-edge, linux-source-5.11.0, linux-headers-generic-64k-hwe-20.04, linux-image-5.11.0-34-generic, linux-tools-oracle, linux-cloud-tools-azure-edge, linux-tools-gke, linux-buildinfo-5.11.0-34-lowlatency, linux-image-unsigned-5.11.0-1018-gcp, linux-headers-5.11.0-1018-gcp, linux-lowlatency-hwe-20.04-edge, linux-raspi, linux-generic, linux-tools-host, linux-kvm, linux-tools-oracle-edge, linux-modules-extra-azure-edge, linux-headers-azure, linux-headers-5.11.0-34-generic-64k, linux-image-generic-lpae, linux-aws-5.11-headers-5.11.0-1017, linux-cloud-tools-lowlatency, linux-libc-dev, linux-lowlatency-hwe-20.04, linux-tools-generic-lpae, linux-aws-tools-5.11.0-1017, linux-aws-5.11-tools-5.11.0-1017, linux-headers-generic, linux-kvm-headers-5.11.0-1015, linux-modules-extra-5.11.0-34-generic, linux-tools-gcp, linux-tools-generic-64k-hwe-20.04, linux-aws-headers-5.11.0-1017, linux-hwe-5.11, linux-image-generic-lpae-hwe-20.04, linux-oracle, linux-cloud-tools-lowlatency-hwe-20.04-edge, linux-azure-5.11-headers-5.11.0-1015, linux-modules-5.11.0-1018-gcp, linux-modules-extra-gcp, linux-cloud-tools-5.11.0-34-generic, linux-headers-lowlatency, linux-tools-5.11.0-1015-kvm, linux-headers-raspi-nolpae, linux-hwe-5.11-headers-5.11.0-34, linux-tools-lowlatency-hwe-20.04, linux-hwe-5.11-source-5.11.0, linux-image-5.11.0-1017-aws, linux-buildinfo-5.11.0-34-generic-lpae, linux-modules-extra-5.11.0-1017-oracle, linux-image-gcp, linux-image-azure, linux-image-generic-64k, linux-headers-oracle, linux-image-oem-20.04, linux-cloud-tools-generic, linux-headers-5.11.0-1015-azure, linux-tools-generic, linux-image-virtual-hwe-20.04-edge, linux-tools-raspi, linux-aws-5.11-cloud-tools-5.11.0-1017, linux-headers-5.11.0-1015-kvm, linux-gcp-tools-5.11.0-1018, linux-cloud-tools-lowlatency-hwe-20.04, linux-cloud-tools-virtual, linux-headers-5.11.0-1017-raspi-nolpae, linux-headers-lowlatency-hwe-20.04-edge, linux-image-extra-virtual, linux-image-unsigned-5.11.0-34-generic-64k, linux-azure-5.11, linux-kvm-tools-5.11.0-1015, linux-oracle-headers-5.11.0-1017, linux-generic-hwe-20.04, linux-headers-gke, linux-tools-5.11.0-34-generic, linux-azure-cloud-tools-5.11.0-1015, linux-raspi-headers-5.11.0-1017, linux-tools-lowlatency, linux-tools-lowlatency-hwe-20.04-edge, linux-headers-5.11.0-34, linux-headers-oracle-edge, linux-tools-generic-hwe-20.04, linux-oracle-edge, linux-hwe-5.11-tools-host, linux-cloud-tools-5.11.0-1015-azure, linux-image-aws-edge, linux-virtual, linux-tools-5.11.0-1017-oracle, linux-generic-hwe-20.04-edge, linux-image-generic-lpae-hwe-20.04-edge, linux-image-aws, linux-tools-5.11.0-34-lowlatency, linux-modules-extra-azure, linux-tools-5.11.0-34-generic-lpae, linux-image-virtual, linux-image-virtual-hwe-20.04, linux-gcp-headers-5.11.0-1018, linux-azure-edge, linux-buildinfo-5.11.0-1015-kvm, linux-modules-extra-gke, linux-headers-generic-hwe-20.04-edge, linux-oracle-5.11-headers-5.11.0-1017, linux-image-unsigned-5.11.0-34-generic, linux-headers-aws-edge, linux-image-azure-edge, linux-lowlatency, linux-cloud-tools-5.11.0-34, linux-tools-generic-64k, linux-image-generic-64k-hwe-20.04, linux-image-generic-hwe-20.04-edge, linux-azure-5.11-cloud-tools-5.11.0-1015, linux-image-extra-virtual-hwe-20.04, linux-buildinfo-5.11.0-1017-oracle, linux-buildinfo-5.11.0-1018-gcp, linux-image-unsigned-5.11.0-1015-azure, linux-raspi-nolpae, linux-headers-generic-lpae-hwe-20.04-edge, linux-image-5.11.0-1018-gcp, linux-image-unsigned-5.11.0-1017-oracle, linux-headers-generic-hwe-20.04, linux-hwe-5.11-cloud-tools-common, linux-cloud-tools-generic-hwe-20.04-edge, linux-gcp, linux-headers-aws, linux-cloud-tools-azure, linux-image-unsigned-5.11.0-34-lowlatency, linux-tools-5.11.0-1017-raspi, linux-tools-5.11.0-34, linux-headers-5.11.0-34-generic-lpae, linux-image-generic-hwe-20.04, linux-image-extra-virtual-hwe-20.04-edge, linux-tools-azure-edge, linux-modules-extra-aws-edge, linux-image-lowlatency, linux-tools-generic-hwe-20.04-edge, linux-headers-virtual-hwe-20.04, linux-oem-20.04, linux-generic-64k-hwe-20.04-edge, linux-azure-headers-5.11.0-1015, linux-generic-lpae, linux-headers-generic-64k, linux-headers-5.11.0-34-lowlatency, linux-image-lowlatency-hwe-20.04, linux-modules-5.11.0-1017-aws, linux-image-5.11.0-34-generic-lpae, linux-oracle-5.11, linux-tools-generic-lpae-hwe-20.04, linux-aws-5.11, linux-headers-oem-20.04, linux-image-raspi, linux-modules-extra-5.11.0-1018-gcp, linux-image-oracle-edge, linux-tools-5.11.0-1017-aws, linux-virtual-hwe-20.04, linux-image-gke, linux-oracle-5.11-tools-5.11.0-1017, linux-generic-lpae-hwe-20.04, linux-tools-virtual-hwe-20.04-edge, linux-doc, linux-image-5.11.0-34-generic-64k, linux-image-5.11.0-34-lowlatency, linux-image-kvm, linux-image-5.11.0-1017-raspi, linux-headers-virtual, linux-headers-5.11.0-34-generic, linux-cloud-tools-common, linux-tools-virtual, linux-aws-cloud-tools-5.11.0-1017, linux-headers-raspi, linux-modules-5.11.0-34-lowlatency, linux-tools-aws, linux-cloud-tools-virtual-hwe-20.04, linux-azure-tools-5.11.0-1015, linux-image-raspi-nolpae, linux-modules-5.11.0-1015-kvm, linux-tools-5.11.0-1018-gcp, linux-headers-5.11.0-1017-aws, linux-source, linux-azure, linux, linux-tools-oem-20.04, linux-gke, linux-image-5.11.0-1015-azure, linux-tools-5.11.0-34-generic-64k, linux-modules-5.11.0-1017-oracle, linux-headers-gcp, linux-tools-generic-64k-hwe-20.04-edge, linux-modules-extra-5.11.0-1015-azure, linux-tools-generic-lpae-hwe-20.04-edge, linux-headers-5.11.0-1017-raspi, linux-buildinfo-5.11.0-34-generic, linux-azure-5.11-tools-5.11.0-1015, linux-headers-generic-lpae-hwe-20.04, linux-modules-5.11.0-1017-raspi, linux-tools-aws-edge, linux-hwe-5.11-tools-common, linux-cloud-tools-virtual-hwe-20.04-edge, linux-cloud-tools-5.11.0-34-lowlatency, linux-tools-5.11.0-1017-raspi-nolpae, linux-headers-kvm, linux-aws-edge, linux-image-oracle, linux-virtual-hwe-20.04-edge, linux-image-lowlatency-hwe-20.04-edge, linux-image-unsigned-5.11.0-1015-kvm, linux-tools-kvm, linux-cloud-tools-generic-hwe-20.04, linux-image-generic, linux-tools-5.11.0-1015-azure, linux-oracle-tools-5.11.0-1017, linux-image-5.11.0-1017-raspi-nolpae, linux-modules-5.11.0-34-generic-lpae, linux-image-5.11.0-1017-oracle, linux-modules-extra-aws, linux-aws, linux-buildinfo-5.11.0-1017-raspi-nolpae, linux-generic-64k, linux-modules-extra-5.11.0-1017-aws, linux-tools-common, linux-headers-azure-edge, linux-modules-5.11.0-1015-azure, linux-tools-virtual-hwe-20.04, linux-image-generic-64k-hwe-20.04-edge, linux-hwe-5.11-tools-5.11.0-34, linux-modules-5.11.0-34-generic, linux-crashdump, linux-raspi-tools-5.11.0-1017, linux-buildinfo-5.11.0-1017-aws, linux-modules-5.11.0-1017-raspi-nolpae, linux-headers-virtual-hwe-20.04-edge - -------------------------------------------------------------------------------- USN-5072-1: Linux kernel vulnerabilities 08 September 2021 Several security issues were fixed in the Linux kernel. Releases o Ubuntu 20.04 LTS Packages o linux-azure-5.8 - Linux kernel for Microsoft Azure cloud systems o linux-oem-5.10 - Linux kernel for OEM systems Details Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. ( CVE-2021-3656 ) Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. ( CVE-2021-3653 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 o linux-image-oem-20.04b - 5.10.0.1045.47 o linux-image-5.10.0-1045-oem - 5.10.0-1045.47 o linux-image-oem-20.04 - 5.10.0.1045.47 o linux-image-5.8.0-1041-azure - 5.8.0-1041.44~20.04.1 o linux-image-azure - 5.8.0.1041.44~20.04.13 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References o CVE-2021-3656 o CVE-2021-3653 Related notices o USN-5062-1 : linux-headers-aws, linux-cloud-tools-generic-lts-vivid, linux-generic-lts-wily, linux-headers-generic-lts-xenial, linux-generic-lts-vivid, linux-headers-lowlatency-lts-utopic, linux-headers-virtual-lts-vivid, linux-headers-lowlatency, linux-signed-image-generic, linux-tools-generic-lts-utopic, linux-image-generic, linux-libc-dev, linux-aws-headers-4.4.0-1096, linux-image-hwe-virtual-trusty, linux-image-lowlatency, linux-aws-cloud-tools-4.4.0-1096, linux-hwe-virtual-trusty, linux-tools-lowlatency, linux-generic, linux-headers-4.4.0-214, linux-buildinfo-4.4.0-1096-aws, linux-signed-image-generic-lts-xenial, linux-signed-generic-lts-wily, linux-tools-4.4.0-1132-aws, linux-cloud-tools-lowlatency, linux-modules-4.4.0-214-lowlatency, linux-crashdump, linux-tools-lts-utopic, linux-image-4.4.0-1097-kvm, linux-headers-4.4.0-214-generic, linux-cloud-tools-4.4.0-214, linux-doc, linux-kvm, linux-image-extra-virtual-lts-vivid, linux-lts-xenial-tools-4.4.0-214, linux-modules-4.4.0-1096-aws, linux-tools-4.4.0-214-generic, linux-headers-generic-lts-utopic, linux-lowlatency, linux-virtual-lts-utopic, linux-image-lowlatency-lts-wily, linux-image-generic-lts-vivid, linux-signed-generic, linux-lowlatency-lts-vivid, linux-virtual, linux-buildinfo-4.4.0-1132-aws, linux-headers-4.4.0-1132-aws, linux-tools-generic-lts-xenial, linux-signed-image-lowlatency, linux-tools-lowlatency-lts-utopic, linux-headers-lowlatency-lts-vivid, linux-image-4.4.0-1132-aws, linux-cloud-tools-lowlatency-lts-wily, linux-signed-image-lowlatency-lts-wily, linux-headers-virtual-lts-wily, linux-signed-image-lowlatency-lts-xenial, linux-image-lowlatency-lts-utopic, linux-cloud-tools-virtual-lts-wily, linux-cloud-tools-virtual, linux-modules-extra-4.4.0-214-generic, linux-tools-4.4.0-214, linux-virtual-lts-xenial, linux-tools-virtual-lts-utopic, linux-signed-generic-lts-xenial, linux-image-hwe-generic-trusty, linux-image-virtual-lts-xenial, linux-image-unsigned-4.4.0-214-lowlatency, linux-image-generic-lts-xenial, linux-cloud-tools-4.4.0-1096-aws, linux-cloud-tools-virtual-lts-utopic, linux-lowlatency-lts-wily, linux-kvm-headers-4.4.0-1097, linux-aws-headers-4.4.0-1132, linux-lowlatency-lts-xenial, linux-headers-lowlatency-lts-xenial, linux-cloud-tools-generic, linux-hwe-generic-trusty, linux-cloud-tools-4.4.0-214-lowlatency, linux-tools-4.4.0-1096-aws, linux-aws-tools-4.4.0-1132, linux-headers-generic-lts-wily, linux-modules-4.4.0-214-generic, linux-kvm-cloud-tools-4.4.0-1097, linux-signed-generic-lts-utopic, linux-image-extra-virtual-lts-utopic, linux-cloud-tools-lowlatency-lts-vivid, linux-lts-xenial-cloud-tools-4.4.0-214, linux-aws-cloud-tools-4.4.0-1132, linux-aws-tools-4.4.0-1096, linux-tools-virtual-lts-wily, linux-signed-image-generic-lts-vivid, linux-image-4.4.0-214-lowlatency, linux-tools-generic-lts-wily, linux-headers-4.4.0-214-lowlatency, linux-image-kvm, linux-headers-virtual, linux-headers-kvm, linux-tools-aws, linux-tools-virtual-lts-xenial, linux-tools-kvm, linux-source, linux-tools-virtual, linux-image-extra-virtual-lts-wily, linux-buildinfo-4.4.0-214-generic, linux-image-lowlatency-lts-xenial, linux-image-aws, linux-signed-image-generic-lts-utopic, linux-tools-generic-lts-vivid, linux-generic-lts-xenial, linux-headers-4.4.0-1097-kvm, linux-virtual-lts-wily, linux-cloud-tools-4.4.0-1132-aws, linux-generic-lts-utopic, linux-image-4.4.0-214-generic, linux-tools-host, linux-image-extra-virtual, linux-image-generic-lts-wily, linux-lts-xenial, linux-image-lowlatency-lts-vivid, linux-tools-common, linux-tools-virtual-lts-vivid, linux-cloud-tools-lowlatency-lts-xenial, linux-image-virtual-lts-vivid, linux-image-virtual, linux-modules-extra-4.4.0-1132-aws, linux-cloud-tools-generic-lts-wily, linux-buildinfo-4.4.0-1097-kvm, linux-image-virtual-lts-wily, linux-signed-lowlatency-lts-xenial, linux-cloud-tools-virtual-lts-vivid, linux-modules-4.4.0-1097-kvm, linux-cloud-tools-lowlatency-lts-utopic, linux-modules-4.4.0-1132-aws, linux-tools-lowlatency-lts-xenial, linux-tools-lowlatency-lts-wily, linux-cloud-tools-virtual-lts-xenial, linux-tools-4.4.0-1097-kvm, linux-image-extra-virtual-lts-xenial, linux-headers-generic-lts-vivid, linux-tools-generic, linux-headers-virtual-lts-xenial, linux-lowlatency-lts-utopic, linux-signed-image-generic-lts-wily, linux-headers-4.4.0-1096-aws, linux-signed-generic-lts-vivid, linux, linux-tools-lowlatency-lts-vivid, linux-headers-lowlatency-lts-wily, linux-cloud-tools-4.4.0-214-generic, linux-cloud-tools-generic-lts-utopic, linux-signed-lowlatency-lts-wily, linux-kvm-tools-4.4.0-1097, linux-cloud-tools-4.4.0-1097-kvm, linux-headers-generic, linux-aws, linux-headers-virtual-lts-utopic, linux-image-generic-lts-utopic, linux-image-4.4.0-1096-aws, linux-buildinfo-4.4.0-214-lowlatency, linux-image-virtual-lts-utopic, linux-cloud-tools-generic-lts-xenial, linux-image-unsigned-4.4.0-214-generic, linux-modules-extra-aws, linux-source-4.4.0, linux-signed-lowlatency, linux-cloud-tools-common, linux-virtual-lts-vivid, linux-tools-4.4.0-214-lowlatency o USN-5071-1 : linux-cloud-tools-virtual-hwe-18.04-edge, linux-headers-aws, linux-image-5.4.0-1023-gkeop, linux-headers-generic-hwe-18.04, linux-oracle, linux-oracle-lts-20.04, linux-gcp-edge, linux-source-5.4.0, linux-gke-5.4, linux-headers-lowlatency, linux-image-azure, linux-headers-oem, linux-generic-lpae-hwe-18.04, linux-tools-5.4.0-1052-gke, linux-gke-5.4-tools-5.4.0-1052, linux-gcp-lts-20.04, linux-cloud-tools-lowlatency-hwe-18.04, linux-image-unsigned-5.4.0-1046-kvm, linux-image-generic, linux-libc-dev, linux-cloud-tools-5.4.0-84, linux-image-unsigned-5.4.0-1023-gkeop, linux-image-oracle, linux-image-oem, linux-gcp, linux-image-lowlatency, linux-tools-lowlatency, linux-signed-image-oracle-edge, linux-tools-5.4.0-84-lowlatency, linux-generic, linux-headers-generic-lpae-hwe-18.04, linux-headers-5.4.0-1058-azure, linux-image-5.4.0-84-generic-lpae, linux-image-virtual-hwe-18.04-edge, linux-tools-gke, linux-cloud-tools-lowlatency, linux-crashdump, linux-signed-azure, linux-aws-5.4-cloud-tools-5.4.0-1056, linux-image-5.4.0-1046-kvm, linux-oracle-tools-5.4.0-1054, linux-generic-hwe-18.04-edge, linux-tools-5.4.0-1058-azure, linux-cloud-tools-azure, linux-oracle-5.4-tools-5.4.0-1054, linux-doc, linux-headers-5.4.0-84-generic-lpae, linux-cloud-tools-gkeop, linux-kvm, linux-modules-5.4.0-1058-azure, linux-headers-gcp-edge, linux-modules-5.4.0-1054-oracle, linux-modules-extra-5.4.0-1058-azure, linux-tools-gcp-edge, linux-lowlatency, linux-modules-extra-aws-edge, linux-headers-5.4.0-84-lowlatency, linux-azure-edge, linux-virtual, linux-tools-aws-lts-20.04, linux-generic-hwe-18.04, linux-gkeop-5.4-headers-5.4.0-1023, linux-cloud-tools-5.4.0-84-generic, linux-image-azure-lts-20.04, linux-image-5.4.0-1052-gke, linux-image-unsigned-5.4.0-1052-gcp, linux-buildinfo-5.4.0-1023-gkeop, linux-image-virtual-hwe-18.04, linux-gkeop-5.4-cloud-tools-5.4.0-1023, linux-cloud-tools-azure-lts-20.04, linux-tools-gcp, linux-image-gcp, linux-modules-extra-azure-lts-20.04, linux-oem, linux-gke-5.4-headers-5.4.0-1052, linux-cloud-tools-5.4.0-1023-gkeop, linux-image-5.4.0-1058-azure, linux-modules-extra-oracle-edge, linux-image-generic-hwe-18.04, linux-headers-gke, linux-cloud-tools-virtual, linux-tools-5.4.0-84-generic, linux-tools-oracle, linux-modules-extra-gcp-edge, linux-modules-extra-5.4.0-1054-oracle, linux-modules-extra-gke-5.4, linux-tools-generic-hwe-18.04-edge, linux-lowlatency-hwe-18.04, linux-image-extra-virtual-hwe-18.04-edge, linux-buildinfo-5.4.0-84-lowlatency, linux-modules-5.4.0-84-generic-lpae, linux-oracle-5.4, linux-headers-lowlatency-hwe-18.04, linux-image-5.4.0-1056-aws, linux-oracle-headers-5.4.0-1054, linux-headers-5.4.0-84, linux-headers-gke-5.4, linux-tools-5.4.0-1023-gkeop, linux-generic-lpae, linux-gkeop-5.4, linux-image-5.4.0-1052-gcp, linux-cloud-tools-generic, linux-oem-tools-host, linux-aws-5.4, linux-image-unsigned-5.4.0-1054-oracle, linux-kvm-headers-5.4.0-1046, linux-buildinfo-5.4.0-84-generic-lpae, linux-image-unsigned-5.4.0-1058-azure, linux-oracle-5.4-headers-5.4.0-1054, linux-tools-5.4.0-84, linux-tools-oracle-lts-20.04, linux-headers-5.4.0-1052-gcp, linux-modules-extra-gkeop-5.4, linux-cloud-tools-5.4.0-84-lowlatency, linux-image-extra-virtual-hwe-18.04, linux-aws-edge, linux-tools-5.4.0-1052-gcp, linux-buildinfo-5.4.0-1054-oracle, linux-image-gkeop-5.4, linux-modules-extra-gkeop, linux-image-oracle-edge, linux-modules-extra-gcp-lts-20.04, linux-headers-oem-osp1, linux-image-unsigned-5.4.0-84-lowlatency, linux-modules-5.4.0-1052-gcp, linux-gkeop-headers-5.4.0-1023, linux-image-unsigned-5.4.0-1052-gke, linux-headers-oracle-lts-20.04, linux-tools-5.4.0-1056-aws, linux-headers-gkeop-5.4, linux-tools-generic-lpae-hwe-18.04, linux-headers-oracle-edge, linux-cloud-tools-generic-hwe-18.04-edge, linux-cloud-tools-5.4.0-1056-aws, linux-azure-5.4-headers-5.4.0-1058, linux-oem-osp1, linux-headers-5.4.0-1052-gke, linux-headers-virtual, linux-gkeop, linux-image-kvm, linux-azure-tools-5.4.0-1058, linux-tools-lowlatency-hwe-18.04-edge, linux-headers-generic-lpae, linux-headers-kvm, linux-headers-lowlatency-hwe-18.04-edge, linux-aws-tools-5.4.0-1056, linux-tools-azure-lts-20.04, linux-tools-gke-5.4, linux-tools-aws, linux-tools-generic-lpae-hwe-18.04-edge, linux-image-azure-edge, linux-image-generic-lpae-hwe-18.04, linux-cloud-tools-virtual-hwe-18.04, linux-gke-tools-5.4.0-1052, linux-headers-virtual-hwe-18.04-edge, linux-modules-extra-azure-edge, linux-source, linux-tools-kvm, linux-image-aws-edge, linux-signed-image-azure, linux-modules-extra-oracle, linux-tools-generic-lpae, linux-tools-virtual, linux-gkeop-tools-5.4.0-1023, linux-cloud-tools-gkeop-5.4, linux-image-aws, linux-signed-azure-edge, linux-generic-lpae-hwe-18.04-edge, linux-headers-azure, linux-cloud-tools-lowlatency-hwe-18.04-edge, linux-headers-5.4.0-1056-aws, linux-signed-oracle, linux-gkeop-cloud-tools-5.4.0-1023, linux-tools-azure, linux-signed-oracle-edge, linux-headers-gcp, linux-oracle-edge, linux-buildinfo-5.4.0-1052-gcp, linux-tools-host, linux-image-gke, linux-modules-extra-azure, linux-azure-5.4-cloud-tools-5.4.0-1058, linux-tools-5.4.0-1054-oracle, linux-image-extra-virtual, linux-tools-lowlatency-hwe-18.04, linux-headers-aws-edge, linux-modules-extra-5.4.0-1023-gkeop, linux-azure-lts-20.04, linux-image-aws-lts-20.04, linux-image-gcp-lts-20.04, linux-modules-5.4.0-1052-gke, linux-tools-common, linux-tools-virtual-hwe-18.04-edge, linux-modules-5.4.0-1046-kvm, linux-cloud-tools-generic-hwe-18.04, linux-image-virtual, linux-virtual-hwe-18.04, linux-headers-azure-lts-20.04, linux-headers-gkeop, linux-headers-5.4.0-1023-gkeop, linux-image-gcp-edge, linux-tools-5.4.0-1046-kvm, linux-tools-oracle-edge, linux-azure-5.4, linux-gkeop-5.4-tools-5.4.0-1023, linux-tools-oem, linux-image-gke-5.4, linux-headers-oracle, linux-azure, linux-gcp-headers-5.4.0-1052, linux-headers-aws-lts-20.04, linux-tools-virtual-hwe-18.04, linux-tools-aws-edge, linux-signed-image-oracle, linux-gke, linux-aws-5.4-headers-5.4.0-1056, linux-aws-headers-5.4.0-1056, linux-azure-5.4-tools-5.4.0-1058, linux-image-generic-lpae, linux-headers-generic-hwe-18.04-edge, linux-image-oracle-lts-20.04, linux-signed-image-azure-edge, linux-tools-generic, linux-tools-gcp-lts-20.04, linux-cloud-tools-azure-edge, linux-modules-5.4.0-1056-aws, linux-modules-5.4.0-1023-gkeop, linux-gkeop-5.4-source-5.4.0, linux-buildinfo-5.4.0-1056-aws, linux-image-generic-lpae-hwe-18.04-edge, linux-image-5.4.0-84-lowlatency, linux-oem-osp1-tools-host, linux-tools-gkeop, linux-buildinfo-5.4.0-1052-gke, linux-headers-5.4.0-1054-oracle, linux-buildinfo-5.4.0-1046-kvm, linux-modules-extra-5.4.0-1056-aws, linux-azure-cloud-tools-5.4.0-1058, linux-modules-extra-5.4.0-1052-gcp, linux-azure-headers-5.4.0-1058, linux, linux-gkeop-source-5.4.0, linux-gke-headers-5.4.0-1052, linux-image-lowlatency-hwe-18.04-edge, linux-gcp-5.4-headers-5.4.0-1052, linux-tools-azure-edge, linux-modules-5.4.0-84-lowlatency, linux-lowlatency-hwe-18.04-edge, linux-gcp-tools-5.4.0-1052, linux-aws-cloud-tools-5.4.0-1056, linux-image-5.4.0-84-generic, linux-modules-extra-5.4.0-1052-gke, linux-modules-extra-aws-lts-20.04, linux-tools-oem-osp1, linux-image-oem-osp1, linux-gcp-5.4-tools-5.4.0-1052, linux-headers-gcp-lts-20.04, linux-headers-generic, linux-modules-extra-gke, linux-headers-azure-edge, linux-aws, linux-tools-5.4.0-84-generic-lpae, linux-headers-virtual-hwe-18.04, linux-tools-gkeop-5.4, linux-modules-extra-5.4.0-84-generic, linux-virtual-hwe-18.04-edge, linux-aws-5.4-tools-5.4.0-1056, linux-image-generic-hwe-18.04-edge, linux-headers-5.4.0-84-generic, linux-kvm-tools-5.4.0-1046, linux-image-lowlatency-hwe-18.04, linux-modules-5.4.0-84-generic, linux-modules-extra-aws, linux-aws-lts-20.04, linux-headers-5.4.0-1046-kvm, linux-tools-generic-hwe-18.04, linux-cloud-tools-5.4.0-1058-azure, linux-modules-extra-gcp, linux-image-5.4.0-1054-oracle, linux-cloud-tools-common, linux-headers-generic-lpae-hwe-18.04-edge, linux-image-unsigned-5.4.0-84-generic, linux-buildinfo-5.4.0-84-generic, linux-gcp-5.4, linux-buildinfo-5.4.0-1058-azure, linux-image-gkeop o USN-5070-1 : linux-headers-aws, linux-modules-5.11.0-1018-gcp, linux-buildinfo-5.11.0-1015-kvm, linux-oracle, linux-virtual-hwe-20.04, linux-modules-5.11.0-1015-azure, linux-headers-lowlatency, linux-aws-tools-5.11.0-1017, linux-headers-generic-lpae-hwe-20.04-edge, linux-image-azure, linux-cloud-tools-5.11.0-34, linux-headers-5.11.0-1017-raspi-nolpae, linux-image-5.11.0-34-generic-64k, linux-image-5.11.0-1015-kvm, linux-tools-raspi, linux-image-extra-virtual-hwe-20.04-edge, linux-image-generic, linux-libc-dev, linux-tools-generic-lpae-hwe-20.04-edge, linux-azure-tools-5.11.0-1015, linux-image-5.11.0-1015-azure, linux-image-oracle, linux-tools-5.11.0-1015-azure, linux-gcp, linux-buildinfo-5.11.0-34-generic-64k, linux-image-lowlatency, linux-tools-lowlatency, linux-tools-generic-64k-hwe-20.04, linux-generic, linux-generic-hwe-20.04-edge, linux-image-raspi-nolpae, linux-image-unsigned-5.11.0-34-generic-64k, linux-cloud-tools-5.11.0-1017-aws, linux-raspi-nolpae, linux-tools-gke, linux-tools-generic-64k-hwe-20.04-edge, linux-cloud-tools-lowlatency, linux-tools-virtual-hwe-20.04-edge, linux-crashdump, linux-buildinfo-5.11.0-1017-raspi, linux-headers-generic-64k-hwe-20.04, linux-cloud-tools-virtual-hwe-20.04, linux-tools-lowlatency-hwe-20.04-edge, linux-cloud-tools-5.11.0-34-lowlatency, linux-azure-5.11, linux-cloud-tools-azure, linux-tools-generic-64k, linux-aws-cloud-tools-5.11.0-1017, linux-headers-5.11.0-34-generic-64k, linux-doc, linux-headers-5.11.0-34-lowlatency, linux-hwe-5.11-tools-common, linux-headers-generic-hwe-20.04-edge, linux-cloud-tools-5.11.0-1015-azure, linux-generic-64k, linux-hwe-5.11, linux-hwe-5.11-tools-host, linux-image-lowlatency-hwe-20.04-edge, linux-image-unsigned-5.11.0-34-generic, linux-tools-5.11.0-1015-kvm, linux-lowlatency, linux-modules-extra-aws-edge, linux-buildinfo-5.11.0-34-generic-lpae, linux-azure-edge, linux-virtual, linux-image-5.11.0-34-generic, linux-oem-20.04, linux-oracle-5.11-headers-5.11.0-1017, linux-image-5.11.0-1017-raspi-nolpae, linux-headers-5.11.0-1017-raspi, linux-headers-5.11.0-1015-azure, linux-tools-gcp, linux-tools-5.11.0-34-generic-64k, linux-image-gcp, linux-headers-lowlatency-hwe-20.04-edge, linux-headers-generic-64k-hwe-20.04-edge, linux-headers-gke, linux-cloud-tools-virtual, linux-cloud-tools-virtual-hwe-20.04-edge, linux-image-virtual-hwe-20.04, linux-image-unsigned-5.11.0-1018-gcp, linux-tools-oracle, linux-modules-extra-5.11.0-34-generic, linux-modules-5.11.0-1015-kvm, linux-hwe-5.11-cloud-tools-common, linux-tools-5.11.0-1017-raspi, linux-tools-oem-20.04, linux-image-extra-virtual-hwe-20.04, linux-image-generic-64k-hwe-20.04-edge, linux-headers-raspi-nolpae, linux-azure-5.11-tools-5.11.0-1015, linux-tools-raspi-nolpae, linux-raspi, linux-generic-lpae, linux-tools-lowlatency-hwe-20.04, linux-headers-generic-lpae-hwe-20.04, linux-aws-5.11-tools-5.11.0-1017, linux-modules-5.11.0-34-lowlatency, linux-modules-5.11.0-34-generic, linux-cloud-tools-generic, linux-tools-5.11.0-34-generic, linux-image-generic-hwe-20.04, linux-tools-5.11.0-1017-aws, linux-buildinfo-5.11.0-1017-raspi-nolpae, linux-cloud-tools-5.11.0-34-generic, linux-aws-edge, linux-kvm-headers-5.11.0-1015, linux-virtual-hwe-20.04-edge, linux-headers-5.11.0-34-generic-lpae, linux-headers-5.11.0-1017-aws, linux-kvm, linux-image-oracle-edge, linux-image-generic-lpae-hwe-20.04, linux-image-5.11.0-1017-raspi, linux-modules-5.11.0-1017-raspi, linux-modules-5.11.0-1017-raspi-nolpae, linux-image-5.11.0-34-generic-lpae, linux-headers-oracle-edge, linux-image-raspi, linux-buildinfo-5.11.0-1015-azure, linux-image-kvm, linux-gcp-headers-5.11.0-1018, linux-headers-virtual, linux-tools-5.11.0-1017-oracle, linux-cloud-tools-generic-hwe-20.04-edge, linux-generic-lpae-hwe-20.04-edge, linux-headers-5.11.0-1017-oracle, linux-headers-5.11.0-34-generic, linux-headers-generic-lpae, linux-headers-kvm, linux-azure-5.11-headers-5.11.0-1015, linux-image-unsigned-5.11.0-1015-azure, linux-oracle-5.11, linux-headers-5.11.0-34, linux-raspi-tools-5.11.0-1017, linux-tools-aws, linux-image-azure-edge, linux-generic-lpae-hwe-20.04, linux-image-lowlatency-hwe-20.04, linux-tools-5.11.0-1017-raspi-nolpae, linux-modules-extra-5.11.0-1018-gcp, linux-tools-generic-lpae-hwe-20.04, linux-modules-extra-azure-edge, linux-headers-5.11.0-1015-kvm, linux-source, linux-hwe-5.11-headers-5.11.0-34, linux-image-aws-edge, linux-image-generic-lpae-hwe-20.04-edge, linux-tools-generic-lpae, linux-tools-kvm, linux-tools-virtual, linux-headers-generic-64k, linux-headers-virtual-hwe-20.04, linux-azure-cloud-tools-5.11.0-1015, linux-image-aws, linux-tools-5.11.0-34, linux-generic-64k-hwe-20.04, linux-modules-5.11.0-34-generic-lpae, linux-headers-azure, linux-modules-extra-5.11.0-1015-azure, linux-hwe-5.11-source-5.11.0, linux-buildinfo-5.11.0-1017-oracle, linux-aws-5.11, linux-tools-azure, linux-headers-gcp, linux-oracle-edge, linux-tools-virtual-hwe-20.04, linux-tools-host, linux-image-gke, linux-modules-extra-azure, linux-image-extra-virtual, linux-headers-aws-edge, linux-tools-5.11.0-34-generic-lpae, linux-raspi-headers-5.11.0-1017, linux-image-oem-20.04, linux-tools-common, linux-headers-generic-hwe-20.04, linux-image-virtual, linux-kvm-tools-5.11.0-1015, linux-cloud-tools-generic-hwe-20.04, linux-cloud-tools-lowlatency-hwe-20.04-edge, linux-tools-oracle-edge, linux-tools-generic-hwe-20.04-edge, linux-aws-5.11-cloud-tools-5.11.0-1017, linux-image-5.11.0-1017-oracle, linux-modules-5.11.0-1017-aws, linux-headers-oracle, linux-buildinfo-5.11.0-34-lowlatency, linux-azure, linux-azure-headers-5.11.0-1015, linux-generic-64k-hwe-20.04-edge, linux-headers-5.11.0-1018-gcp, linux-tools-aws-edge, linux-oracle-5.11-tools-5.11.0-1017, linux-gke, linux-image-generic-lpae, linux-image-5.11.0-34-lowlatency, linux-hwe-5.11-cloud-tools-5.11.0-34, linux-image-unsigned-5.11.0-1017-oracle, linux-modules-extra-5.11.0-1017-oracle, linux-lowlatency-hwe-20.04, linux-oracle-tools-5.11.0-1017, linux-oracle-headers-5.11.0-1017, linux-generic-hwe-20.04, linux-tools-generic, linux-modules-extra-5.11.0-1017-aws, linux-cloud-tools-azure-edge, linux-modules-5.11.0-34-generic-64k, linux-image-generic-hwe-20.04-edge, linux-tools-5.11.0-34-lowlatency, linux-image-unsigned-5.11.0-34-lowlatency, linux-aws-headers-5.11.0-1017, linux-image-generic-64k, linux, linux-azure-5.11-cloud-tools-5.11.0-1015, linux-modules-5.11.0-1017-oracle, linux-tools-azure-edge, linux-image-5.11.0-1018-gcp, linux-lowlatency-hwe-20.04-edge, linux-headers-generic, linux-modules-extra-gke, linux-headers-oem-20.04, linux-headers-azure-edge, linux-aws, linux-source-5.11.0, linux-hwe-5.11-tools-5.11.0-34, linux-headers-virtual-hwe-20.04-edge, linux-buildinfo-5.11.0-1017-aws, linux-buildinfo-5.11.0-1018-gcp, linux-gcp-tools-5.11.0-1018, linux-aws-5.11-headers-5.11.0-1017, linux-modules-extra-aws, linux-cloud-tools-lowlatency-hwe-20.04, linux-headers-lowlatency-hwe-20.04, linux-image-virtual-hwe-20.04-edge, linux-modules-extra-gcp, linux-cloud-tools-common, linux-headers-raspi, linux-image-generic-64k-hwe-20.04, linux-image-unsigned-5.11.0-1015-kvm, linux-tools-5.11.0-1018-gcp, linux-tools-generic-hwe-20.04, linux-image-5.11.0-1017-aws, linux-buildinfo-5.11.0-34-generic - ------------------------------------------------------------------------------- USN-5073-1: Linux kernel vulnerabilities 09 September 2021 Several security issues were fixed in the Linux kernel. Releases o Ubuntu 18.04 LTS o Ubuntu 16.04 ESM o Ubuntu 14.04 ESM Packages o linux - Linux kernel o linux-aws - Linux kernel for Amazon Web Services (AWS) systems o linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems o linux-azure - Linux kernel for Microsoft Azure Cloud systems o linux-azure-4.15 - Linux kernel for Microsoft Azure Cloud systems o linux-dell300x - Linux kernel for Dell 300x platforms o linux-hwe - Linux hardware enablement (HWE) kernel o linux-kvm - Linux kernel for cloud environments o linux-oracle - Linux kernel for Oracle Cloud systems o linux-snapdragon - Linux kernel for Qualcomm Snapdragon processors Details Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. ( CVE-2021-3656 ) Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. ( CVE-2021-3653 ) Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). ( CVE-2021-34693 ) Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. ( CVE-2021-3612 ) It was discovered that the Virtio console implementation in the Linux kernel did not properly validate input lengths in some situations. A local attacker could possibly use this to cause a denial of service (system crash). ( CVE-2021-38160 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 o linux-image-4.15.0-156-lowlatency - 4.15.0-156.163 o linux-image-virtual - 4.15.0.156.145 o linux-image-aws-lts-18.04 - 4.15.0.1111.114 o linux-image-generic - 4.15.0.156.145 o linux-image-oracle-lts-18.04 - 4.15.0.1080.90 o linux-image-4.15.0-1027-dell300x - 4.15.0-1027.32 o linux-image-4.15.0-1123-azure - 4.15.0-1123.136 o linux-image-4.15.0-1112-snapdragon - 4.15.0-1112.121 o linux-image-4.15.0-156-generic-lpae - 4.15.0-156.163 o linux-image-snapdragon - 4.15.0.1112.115 o linux-image-dell300x - 4.15.0.1027.29 o linux-image-4.15.0-1099-kvm - 4.15.0-1099.101 o linux-image-azure-lts-18.04 - 4.15.0.1123.96 o linux-image-4.15.0-156-generic - 4.15.0-156.163 o linux-image-4.15.0-1080-oracle - 4.15.0-1080.88 o linux-image-kvm - 4.15.0.1099.95 o linux-image-4.15.0-1111-aws - 4.15.0-1111.118 o linux-image-generic-lpae - 4.15.0.156.145 o linux-image-lowlatency - 4.15.0.156.145 Ubuntu 16.04 o linux-image-4.15.0-156-lowlatency - 4.15.0-156.163~16.04.1 Available with UA Infra or UA Desktop o linux-image-lowlatency-hwe-16.04 - 4.15.0.156.149 Available with UA Infra or UA Desktop o linux-image-oem - 4.15.0.156.149 Available with UA Infra or UA Desktop o linux-image-4.15.0-156-generic - 4.15.0-156.163~16.04.1 Available with UA Infra or UA Desktop o linux-image-virtual-hwe-16.04 - 4.15.0.156.149 Available with UA Infra or UA Desktop o linux-image-azure - 4.15.0.1123.114 Available with UA Infra or UA Desktop o linux-image-aws-hwe - 4.15.0.1111.102 Available with UA Infra or UA Desktop o linux-image-oracle - 4.15.0.1080.68 Available with UA Infra or UA Desktop o linux-image-4.15.0-1080-oracle - 4.15.0-1080.88~16.04.1 Available with UA Infra or UA Desktop o linux-image-4.15.0-1123-azure - 4.15.0-1123.136~16.04.1 Available with UA Infra or UA Desktop o linux-image-4.15.0-1111-aws - 4.15.0-1111.118~16.04.1 Available with UA Infra or UA Desktop o linux-image-generic-hwe-16.04 - 4.15.0.156.149 Available with UA Infra or UA Desktop Ubuntu 14.04 o linux-image-4.15.0-1123-azure - 4.15.0-1123.136~14.04.1 Available with UA Infra or UA Desktop o linux-image-azure - 4.15.0.1123.96 Available with UA Infra or UA Desktop After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References o CVE-2021-3612 o CVE-2021-34693 o CVE-2021-38160 o CVE-2021-3656 o CVE-2021-3653 Related notices o USN-5062-1 : linux-image-extra-virtual-lts-vivid, linux-signed-lowlatency-lts-wily, linux-cloud-tools-4.4.0-214-lowlatency, linux-signed-generic-lts-vivid, linux-signed-lowlatency-lts-xenial, linux-modules-4.4.0-214-generic, linux-tools-lowlatency-lts-xenial, linux-tools-virtual-lts-xenial, linux-headers-4.4.0-214-lowlatency, linux-image-lowlatency-lts-vivid, linux-signed-image-generic-lts-vivid, linux-image-virtual-lts-xenial, linux-signed-generic-lts-wily, linux-virtual-lts-xenial, linux-headers-generic-lts-vivid, linux-tools-virtual-lts-vivid, linux-image-extra-virtual-lts-xenial, linux-generic-lts-xenial, linux-modules-4.4.0-1096-aws, linux-lowlatency-lts-vivid, linux-tools-lts-utopic, linux-headers-generic-lts-wily, linux-tools-4.4.0-1097-kvm, linux-signed-image-lowlatency-lts-xenial, linux-cloud-tools-virtual-lts-vivid, linux-doc, linux-aws-cloud-tools-4.4.0-1096, linux-image-4.4.0-214-generic, linux-image-virtual, linux-aws-tools-4.4.0-1096, linux-cloud-tools-4.4.0-1097-kvm, linux-cloud-tools-lowlatency-lts-vivid, linux-signed-image-lowlatency-lts-wily, linux-aws-headers-4.4.0-1132, linux-headers-4.4.0-1097-kvm, linux-headers-virtual-lts-vivid, linux-buildinfo-4.4.0-1132-aws, linux-headers-4.4.0-214-generic, linux-image-extra-virtual, linux-tools-virtual-lts-utopic, linux-image-generic-lts-vivid, linux-aws-headers-4.4.0-1096, linux-cloud-tools-virtual, linux-buildinfo-4.4.0-1096-aws, linux-headers-4.4.0-1132-aws, linux-cloud-tools-generic-lts-wily, linux-tools-4.4.0-214, linux-modules-extra-4.4.0-1132-aws, linux-crashdump, linux-tools-virtual, linux-image-virtual-lts-utopic, linux-headers-lowlatency-lts-wily, linux-tools-4.4.0-214-generic, linux-headers-lowlatency, linux-tools-generic-lts-utopic, linux-libc-dev, linux-tools-virtual-lts-wily, linux-cloud-tools-4.4.0-214, linux-tools-lowlatency-lts-wily, linux-cloud-tools-lowlatency-lts-utopic, linux-generic-lts-wily, linux-tools-generic-lts-wily, linux-image-generic-lts-wily, linux-virtual-lts-utopic, linux-headers-aws, linux-headers-virtual-lts-xenial, linux-image-4.4.0-1097-kvm, linux-tools-4.4.0-214-lowlatency, linux-image-hwe-generic-trusty, linux-kvm, linux-signed-lowlatency, linux-image-generic-lts-xenial, linux-kvm-cloud-tools-4.4.0-1097, linux-aws-cloud-tools-4.4.0-1132, linux-image-virtual-lts-wily, linux-tools-host, linux-kvm-tools-4.4.0-1097, linux-image-generic, linux-image-lowlatency, linux-cloud-tools-4.4.0-1132-aws, linux-cloud-tools-generic-lts-utopic, linux-image-kvm, linux-modules-4.4.0-1097-kvm, linux-virtual, linux-signed-image-lowlatency, linux-tools-common, linux-tools-generic-lts-vivid, linux-aws-tools-4.4.0-1132, linux-source-4.4.0, linux-cloud-tools-4.4.0-1096-aws, linux-lowlatency, linux-tools-generic-lts-xenial, linux-lts-xenial, linux-cloud-tools-generic-lts-xenial, linux-image-lowlatency-lts-utopic, linux-headers-4.4.0-214, linux-tools-lowlatency, linux-headers-generic-lts-xenial, linux-image-lowlatency-lts-xenial, linux-headers-generic, linux-buildinfo-4.4.0-214-lowlatency, linux-signed-image-generic-lts-utopic, linux-cloud-tools-common, linux-kvm-headers-4.4.0-1097, linux-headers-virtual-lts-utopic, linux-buildinfo-4.4.0-1097-kvm, linux-image-lowlatency-lts-wily, linux-image-4.4.0-1132-aws, linux-signed-image-generic-lts-wily, linux-headers-lowlatency-lts-utopic, linux-cloud-tools-lowlatency-lts-xenial, linux-modules-extra-4.4.0-214-generic, linux-headers-generic-lts-utopic, linux-lts-xenial-tools-4.4.0-214, linux-cloud-tools-virtual-lts-xenial, linux-tools-aws, linux-virtual-lts-vivid, linux-image-unsigned-4.4.0-214-lowlatency, linux-tools-lowlatency-lts-utopic, linux-cloud-tools-lowlatency-lts-wily, linux-headers-lowlatency-lts-xenial, linux, linux-image-unsigned-4.4.0-214-generic, linux-lts-xenial-cloud-tools-4.4.0-214, linux-tools-generic, linux-hwe-generic-trusty, linux-image-generic-lts-utopic, linux-headers-lowlatency-lts-vivid, linux-image-virtual-lts-vivid, linux-aws, linux-cloud-tools-virtual-lts-wily, linux-cloud-tools-4.4.0-214-generic, linux-image-4.4.0-1096-aws, linux-signed-generic, linux-signed-image-generic-lts-xenial, linux-image-extra-virtual-lts-utopic, linux-cloud-tools-generic-lts-vivid, linux-buildinfo-4.4.0-214-generic, linux-lowlatency-lts-utopic, linux-tools-kvm, linux-cloud-tools-generic, linux-modules-4.4.0-214-lowlatency, linux-signed-generic-lts-utopic, linux-lowlatency-lts-xenial, linux-headers-kvm, linux-image-4.4.0-214-lowlatency, linux-virtual-lts-wily, linux-signed-image-generic, linux-modules-4.4.0-1132-aws, linux-tools-lowlatency-lts-vivid, linux-generic, linux-image-hwe-virtual-trusty, linux-generic-lts-vivid, linux-headers-virtual, linux-image-extra-virtual-lts-wily, linux-generic-lts-utopic, linux-lowlatency-lts-wily, linux-modules-extra-aws, linux-source, linux-headers-4.4.0-1096-aws, linux-cloud-tools-virtual-lts-utopic, linux-headers-virtual-lts-wily, linux-image-aws, linux-signed-generic-lts-xenial, linux-tools-4.4.0-1096-aws, linux-tools-4.4.0-1132-aws, linux-cloud-tools-lowlatency, linux-hwe-virtual-trusty o USN-5045-1 : linux-aws-5.4-cloud-tools-5.4.0-1055, linux-headers-5.4.0-81, linux-image-virtual-hwe-18.04-edge, linux-signed-oracle, linux-tools-generic-lpae-hwe-18.04-edge, linux-oracle-5.4, linux-image-lowlatency-hwe-18.04, linux-image-azure-edge, linux-tools-raspi, linux-signed-image-oracle, linux-buildinfo-5.4.0-1042-raspi, linux-headers-gkeop-5.4, linux-image-gkeop-5.4, linux-gkeop-5.4-cloud-tools-5.4.0-1022, linux-signed-azure-edge, linux-headers-gcp, linux-headers-5.4.0-1051-gcp, linux-image-virtual, linux-buildinfo-5.4.0-1051-gcp, linux-gke-5.4-headers-5.4.0-1051, linux-tools-raspi2-hwe-18.04-edge, linux-image-generic-hwe-18.04, linux-image-unsigned-5.4.0-1053-oracle, linux-headers-generic-hwe-18.04, linux-tools-5.4.0-1042-raspi, linux-headers-raspi2-hwe-18.04, linux-headers-azure-edge, linux-tools-gcp, linux-aws-lts-20.04, linux-headers-5.4.0-1055-aws, linux-image-gcp-edge, linux-cloud-tools-gkeop, linux-image-unsigned-5.4.0-1022-gkeop, linux-tools-virtual, linux-gcp-lts-20.04, linux-headers-5.4.0-1042-raspi, linux-modules-extra-oracle-edge, linux-image-gke, linux-image-virtual-hwe-18.04, linux-cloud-tools-generic-hwe-18.04-edge, linux-modules-extra-5.4.0-1055-aws, linux-image-oem-osp1, linux-headers-5.4.0-81-generic-lpae, linux-modules-5.4.0-1053-oracle, linux-image-5.4.0-1056-azure, linux-tools-5.4.0-1056-azure, linux-gke-headers-5.4.0-1051, linux-image-unsigned-5.4.0-1051-gcp, linux-kvm, linux-headers-generic-lpae-hwe-18.04, linux-tools-lowlatency-hwe-18.04, linux-modules-extra-gkeop-5.4, linux-image-generic, linux-buildinfo-5.4.0-81-generic, linux-tools-snapdragon-hwe-18.04-edge, linux-tools-gcp-edge, linux-headers-5.4.0-81-lowlatency, linux-headers-gkeop, linux-oracle-5.4-headers-5.4.0-1053, linux-tools-generic-hwe-18.04, linux-modules-5.4.0-1045-kvm, linux-tools-lowlatency, linux-raspi-5.4, linux-azure-tools-5.4.0-1056, linux-generic-hwe-18.04-edge, linux-cloud-tools-virtual-hwe-18.04-edge, linux-modules-extra-oracle, linux-modules-extra-aws-lts-20.04, linux-modules-5.4.0-1022-gkeop, linux-raspi-hwe-18.04-edge, linux-gkeop, linux, linux-tools-generic, linux-tools-generic-lpae-hwe-18.04, linux-tools-gcp-lts-20.04, linux-gcp-5.4-headers-5.4.0-1051, linux-gkeop-5.4, linux-aws, linux-gcp-5.4-tools-5.4.0-1051, linux-generic-lpae-hwe-18.04-edge, linux-image-lowlatency-hwe-18.04-edge, linux-generic-lpae, linux-aws-edge, linux-gke-5.4-tools-5.4.0-1051, linux-cloud-tools-generic, linux-modules-5.4.0-81-lowlatency, linux-hwe-5.4-cloud-tools-common, linux-snapdragon-hwe-18.04-edge, linux-gkeop-5.4-headers-5.4.0-1022, linux-image-5.4.0-1022-gkeop, linux-headers-raspi2, linux-buildinfo-5.4.0-81-lowlatency, linux-modules-extra-aws-edge, linux-modules-extra-aws, linux-gkeop-5.4-tools-5.4.0-1022, linux-tools-gke, linux-modules-5.4.0-1051-gke, linux-cloud-tools-lowlatency, linux-gke-tools-5.4.0-1051, linux-oem-osp1, linux-tools-raspi2-hwe-18.04, linux-tools-5.4.0-1053-oracle, linux-image-oracle-lts-20.04, linux-hwe-5.4-tools-common, linux-lowlatency-hwe-18.04-edge, linux-tools-virtual-hwe-18.04, linux-azure-lts-20.04, linux-modules-extra-5.4.0-1056-azure, linux-gcp, linux-cloud-tools-generic-hwe-18.04, linux-doc, linux-modules-extra-gcp, linux-tools-oem, linux-modules-extra-gke-5.4, linux-tools-5.4.0-1045-kvm, linux-hwe-5.4-cloud-tools-5.4.0-81, linux-oracle-5.4-tools-5.4.0-1053, linux-raspi-headers-5.4.0-1042, linux-image-unsigned-5.4.0-81-generic, linux-headers-5.4.0-1053-oracle, linux-headers-oem, linux-raspi-5.4-tools-5.4.0-1042, linux-signed-image-azure-edge, linux-modules-5.4.0-1051-gcp, linux-aws-5.4, linux-tools-oracle-lts-20.04, linux-image-unsigned-5.4.0-1051-gke, linux-image-generic-lpae-hwe-18.04-edge, linux-oracle-edge, linux-headers-5.4.0-81-generic, linux-snapdragon-hwe-18.04, linux-raspi2-hwe-18.04, linux-image-unsigned-5.4.0-1056-azure, linux-image-gkeop, linux-image-generic-lpae-hwe-18.04, linux-generic-lpae-hwe-18.04, linux-headers-generic-lpae, linux-modules-extra-gcp-edge, linux-gkeop-tools-5.4.0-1022, linux-virtual, linux-oracle-tools-5.4.0-1053, linux-modules-5.4.0-1055-aws, linux-tools-common, linux-tools-gkeop, linux-tools-lowlatency-hwe-18.04-edge, linux-tools-azure-lts-20.04, linux-tools-generic-lpae, linux-signed-image-azure, linux-tools-raspi-hwe-18.04, linux-cloud-tools-common, linux-headers-5.4.0-1022-gkeop, linux-modules-extra-virtual-hwe-18.04, linux-kvm-headers-5.4.0-1045, linux-tools-oracle-edge, linux-headers-generic-hwe-18.04-edge, linux-cloud-tools-lowlatency-hwe-18.04, linux-azure-5.4-cloud-tools-5.4.0-1056, linux-image-5.4.0-1051-gke, linux-image-azure-lts-20.04, linux-headers-oracle-lts-20.04, linux-buildinfo-5.4.0-1022-gkeop, linux-tools-kvm, linux-image-gke-5.4, linux-gcp-5.4, linux-virtual-hwe-18.04, linux-raspi-tools-5.4.0-1042, linux-headers-aws-edge, linux-gcp-tools-5.4.0-1051, linux-tools-5.4.0-81-generic-lpae, linux-headers-snapdragon-hwe-18.04, linux-generic, linux-tools-5.4.0-81, linux-aws-5.4-tools-5.4.0-1055, linux-cloud-tools-5.4.0-81, linux-headers-snapdragon-hwe-18.04-edge, linux-headers-azure, linux-buildinfo-5.4.0-1051-gke, linux-modules-extra-azure, linux-oem, linux-aws-5.4-headers-5.4.0-1055, linux-image-oem, linux-generic-hwe-18.04, linux-gkeop-5.4-source-5.4.0, linux-image-gcp-lts-20.04, linux-image-5.4.0-81-generic-lpae, linux-headers-aws-lts-20.04, linux-headers-oracle-edge, linux-image-generic-hwe-18.04-edge, linux-cloud-tools-5.4.0-81-lowlatency, linux-headers-gcp-edge, linux-image-raspi2-hwe-18.04-edge, linux-headers-5.4.0-1051-gke, linux-source-5.4.0, linux-modules-5.4.0-81-generic-lpae, linux-azure-cloud-tools-5.4.0-1056, linux-cloud-tools-virtual, linux-tools-aws-edge, linux-cloud-tools-5.4.0-81-generic, linux-cloud-tools-virtual-hwe-18.04, linux-gkeop-source-5.4.0, linux-modules-5.4.0-1042-raspi, linux-raspi2-hwe-18.04-edge, linux-oem-tools-host, linux-tools-virtual-hwe-18.04-edge, linux-modules-extra-azure-edge, linux-libc-dev, linux-oracle-headers-5.4.0-1053, linux-aws-tools-5.4.0-1055, linux-gkeop-headers-5.4.0-1022, linux-modules-5.4.0-1056-azure, linux-kvm-tools-5.4.0-1045, linux-image-generic-lpae, linux-modules-extra-5.4.0-81-generic, linux-buildinfo-5.4.0-1053-oracle, linux-modules-extra-gke, linux-image-lowlatency, linux-image-raspi-hwe-18.04, linux-azure-edge, linux-image-aws-edge, linux-modules-extra-gkeop, linux-raspi, linux-tools-aws-lts-20.04, linux-image-raspi, linux-tools-5.4.0-81-generic, linux-gke-5.4, linux-headers-lowlatency-hwe-18.04, linux-headers-gcp-lts-20.04, linux-buildinfo-5.4.0-1045-kvm, linux-headers-virtual-hwe-18.04-edge, linux-cloud-tools-azure, linux-tools-5.4.0-81-lowlatency, linux-oracle-lts-20.04, linux-image-5.4.0-1042-raspi, linux-headers-gke-5.4, linux-raspi2, linux-virtual-hwe-18.04-edge, linux-cloud-tools-azure-lts-20.04, linux-cloud-tools-gkeop-5.4, linux-azure-headers-5.4.0-1056, linux-oracle, linux-tools-5.4.0-1055-aws, linux-modules-extra-gcp-lts-20.04, linux-headers-raspi-hwe-18.04-edge, linux-aws-cloud-tools-5.4.0-1055, linux-headers-raspi2-hwe-18.04-edge, linux-image-raspi2, linux-cloud-tools-lowlatency-hwe-18.04-edge, linux-modules-extra-azure-lts-20.04, linux-tools-5.4.0-1051-gke, linux-tools-oem-osp1, linux-image-5.4.0-81-generic, linux-buildinfo-5.4.0-1056-azure, linux-modules-5.4.0-81-generic, linux-headers-virtual, linux-source, linux-image-snapdragon-hwe-18.04, linux-image-aws, linux-signed-oracle-edge, linux-oem-osp1-tools-host, linux-tools-snapdragon-hwe-18.04, linux-headers-gke, linux-image-raspi2-hwe-18.04, linux-headers-lowlatency-hwe-18.04-edge, linux-image-5.4.0-1053-oracle, linux-image-oracle, linux-image-aws-lts-20.04, linux-modules-extra-5.4.0-1022-gkeop, linux-image-unsigned-5.4.0-81-lowlatency, linux-hwe-5.4, linux-hwe-5.4-source-5.4.0, linux-image-5.4.0-1055-aws, linux-tools-raspi-hwe-18.04-edge, linux-image-raspi-hwe-18.04-edge, linux-modules-extra-5.4.0-1053-oracle, linux-cloud-tools-azure-edge, linux-image-extra-virtual, linux-image-extra-virtual-hwe-18.04, linux-azure, linux-crashdump, linux-buildinfo-5.4.0-1055-aws, linux-tools-azure, linux-gke, linux-raspi-5.4-headers-5.4.0-1042, linux-headers-lowlatency, linux-azure-5.4-tools-5.4.0-1056, linux-tools-oracle, linux-image-oracle-edge, linux-headers-5.4.0-1056-azure, linux-modules-extra-virtual-hwe-18.04-edge, linux-headers-aws, linux-signed-image-oracle-edge, linux-tools-generic-hwe-18.04-edge, linux-headers-azure-lts-20.04, linux-raspi-hwe-18.04, linux-tools-host, linux-cloud-tools-5.4.0-1055-aws, linux-image-kvm, linux-lowlatency-hwe-18.04, linux-tools-raspi2, linux-buildinfo-5.4.0-81-generic-lpae, linux-lowlatency, linux-headers-oracle, linux-headers-5.4.0-1045-kvm, linux-aws-headers-5.4.0-1055, linux-headers-generic, linux-image-5.4.0-1051-gcp, linux-tools-gke-5.4, linux-image-azure, linux-tools-azure-edge, linux-gcp-edge, linux-signed-azure, linux-image-extra-virtual-hwe-18.04-edge, linux-image-snapdragon-hwe-18.04-edge, linux-modules-extra-5.4.0-1051-gcp, linux-cloud-tools-5.4.0-1022-gkeop, linux-headers-virtual-hwe-18.04, linux-tools-aws, linux-tools-5.4.0-1022-gkeop, linux-headers-oem-osp1, linux-hwe-5.4-tools-5.4.0-81, linux-image-5.4.0-1045-kvm, linux-azure-5.4, linux-gkeop-cloud-tools-5.4.0-1022, linux-tools-5.4.0-1051-gcp, linux-headers-kvm, linux-headers-raspi, linux-image-5.4.0-81-lowlatency, linux-cloud-tools-5.4.0-1056-azure, linux-image-unsigned-5.4.0-1045-kvm, linux-azure-5.4-headers-5.4.0-1056, linux-headers-raspi-hwe-18.04, linux-gcp-headers-5.4.0-1051, linux-modules-extra-5.4.0-1051-gke, linux-hwe-5.4-headers-5.4.0-81, linux-headers-generic-lpae-hwe-18.04-edge, linux-image-gcp, linux-tools-gkeop-5.4 o USN-5072-1 : linux-image-5.10.0-1045-oem, linux-modules-extra-5.8.0-1041-azure, linux-tools-oem-20.04b, linux-modules-5.10.0-1045-oem, linux-image-oem-20.04, linux-azure-5.8-headers-5.8.0-1041, linux-azure-5.8, linux-azure, linux-oem-20.04b, linux-image-oem-20.04b, linux-headers-oem-20.04b, linux-tools-azure, linux-azure-5.8-tools-5.8.0-1041, linux-modules-5.8.0-1041-azure, linux-oem-5.10-headers-5.10.0-1045, linux-tools-5.8.0-1041-azure, linux-image-5.8.0-1041-azure, linux-tools-5.10.0-1045-oem, linux-buildinfo-5.8.0-1041-azure, linux-cloud-tools-azure, linux-image-oem-20.04-edge, linux-oem-20.04, linux-tools-oem-20.04, linux-oem-5.10, linux-headers-oem-20.04, linux-headers-oem-20.04-edge, linux-image-azure, linux-buildinfo-5.10.0-1045-oem, linux-oem-20.04-edge, linux-headers-azure, linux-image-unsigned-5.10.0-1045-oem, linux-oem-5.10-tools-5.10.0-1045, linux-tools-oem-20.04-edge, linux-azure-5.8-cloud-tools-5.8.0-1041, linux-image-unsigned-5.8.0-1041-azure, linux-oem-5.10-tools-host, linux-modules-extra-azure, linux-headers-5.10.0-1045-oem, linux-headers-5.8.0-1041-azure, linux-cloud-tools-5.8.0-1041-azure o USN-5071-1 : linux-modules-extra-5.4.0-1023-gkeop, linux-buildinfo-5.4.0-84-generic, linux-oem, linux-headers-gke, linux-image-virtual-hwe-18.04-edge, linux-modules-5.4.0-1058-azure, linux-oem-osp1, linux-signed-oracle, linux-oracle-5.4-tools-5.4.0-1054, linux-tools-generic-lpae-hwe-18.04-edge, linux-image-oem, linux-headers-lowlatency-hwe-18.04-edge, linux-headers-5.4.0-1052-gcp, linux-oracle-5.4, linux-modules-extra-5.4.0-84-generic, linux-gke-headers-5.4.0-1052, linux-cloud-tools-5.4.0-1056-aws, linux-image-oracle, linux-generic-hwe-18.04, linux-image-aws-lts-20.04, linux-gkeop-5.4-source-5.4.0, linux-image-gcp-lts-20.04, linux-image-lowlatency-hwe-18.04, linux-image-oracle-lts-20.04, linux-lowlatency-hwe-18.04-edge, linux-tools-5.4.0-1052-gke, linux-gkeop-cloud-tools-5.4.0-1023, linux-headers-5.4.0-1054-oracle, linux-buildinfo-5.4.0-1056-aws, linux-azure-lts-20.04, linux-image-azure-edge, linux-image-unsigned-5.4.0-1058-azure, linux-signed-image-oracle, linux-tools-virtual-hwe-18.04, linux-headers-aws-lts-20.04, linux-headers-gkeop-5.4, linux-cloud-tools-5.4.0-84-generic, linux-image-gkeop-5.4, linux-signed-azure-edge, linux-gcp, linux-cloud-tools-generic-hwe-18.04, linux-headers-oracle-edge, linux-image-generic-hwe-18.04-edge, linux-headers-gcp, linux-doc, linux-azure-tools-5.4.0-1058, linux-image-virtual, linux-cloud-tools-5.4.0-84-lowlatency, linux-image-5.4.0-1052-gke, linux-headers-gcp-edge, linux-modules-extra-gcp, linux-tools-5.4.0-84-generic, linux-buildinfo-5.4.0-1054-oracle, linux-tools-oem, linux-source-5.4.0, linux-modules-extra-gke-5.4, linux-cloud-tools-azure-edge, linux-modules-5.4.0-1056-aws, linux-image-extra-virtual, linux-image-extra-virtual-hwe-18.04, linux-image-generic-hwe-18.04, linux-headers-generic-hwe-18.04, linux-buildinfo-5.4.0-1052-gcp, linux-headers-azure-edge, linux-tools-gcp, linux-cloud-tools-virtual, linux-kvm-headers-5.4.0-1046, linux-aws-lts-20.04, linux-cloud-tools-5.4.0-1023-gkeop, linux-image-5.4.0-84-lowlatency, linux-gke-5.4-tools-5.4.0-1052, linux-modules-5.4.0-1046-kvm, linux-azure, linux-azure-5.4-headers-5.4.0-1058, linux-tools-aws-edge, linux-image-5.4.0-1023-gkeop, linux-cloud-tools-virtual-hwe-18.04, linux-crashdump, linux-image-gcp-edge, linux-gkeop-source-5.4.0, linux-headers-oem, linux-tools-gkeop-5.4, linux-cloud-tools-gkeop, linux-tools-azure, linux-tools-virtual, linux-gke, linux-oem-tools-host, linux-gcp-lts-20.04, linux-headers-lowlatency, linux-modules-extra-oracle-edge, linux-image-gke, linux-tools-virtual-hwe-18.04-edge, linux-modules-extra-azure-edge, linux-modules-extra-5.4.0-1052-gcp, linux-headers-5.4.0-1046-kvm, linux-modules-5.4.0-84-generic, linux-signed-image-azure-edge, linux-gkeop-5.4-cloud-tools-5.4.0-1023, linux-libc-dev, linux-tools-oracle, linux-aws-5.4, linux-cloud-tools-generic-hwe-18.04-edge, linux-image-5.4.0-1058-azure, linux-image-oracle-edge, linux-image-virtual-hwe-18.04, linux-tools-5.4.0-84, linux-tools-oracle-lts-20.04, linux-image-generic-lpae-hwe-18.04-edge, linux-image-oem-osp1, linux-modules-5.4.0-1023-gkeop, linux-modules-5.4.0-84-lowlatency, linux-oracle-edge, linux-aws-5.4-headers-5.4.0-1056, linux-tools-5.4.0-1052-gcp, linux-aws-tools-5.4.0-1056, linux-headers-aws, linux-buildinfo-5.4.0-84-lowlatency, linux-gkeop-tools-5.4.0-1023, linux-headers-5.4.0-1056-aws, linux-image-generic-lpae, linux-modules-5.4.0-1052-gcp, linux-image-unsigned-5.4.0-1046-kvm, linux-kvm, linux-headers-generic-lpae-hwe-18.04, linux-signed-image-oracle-edge, linux-gke-tools-5.4.0-1052, linux-modules-extra-5.4.0-1052-gke, linux-image-gkeop, linux-image-generic-lpae-hwe-18.04, linux-tools-lowlatency-hwe-18.04, linux-generic-lpae-hwe-18.04, linux-tools-5.4.0-1056-aws, linux-headers-azure-lts-20.04, linux-cloud-tools-5.4.0-84, linux-tools-generic-hwe-18.04-edge, linux-modules-extra-gkeop-5.4, linux-headers-5.4.0-1023-gkeop, linux-oracle-5.4-headers-5.4.0-1054, linux-tools-host, linux-headers-generic-lpae, linux-modules-extra-gcp-edge, linux-modules-extra-gke, linux-image-generic, linux-image-lowlatency, linux-modules-extra-5.4.0-1056-aws, linux-tools-5.4.0-1058-azure, linux-image-kvm, linux-azure-edge, linux-image-aws-edge, linux-modules-extra-gkeop, linux-lowlatency-hwe-18.04, linux-virtual, linux-gcp-5.4-headers-5.4.0-1052, linux-tools-common, linux-tools-aws-lts-20.04, linux-tools-gcp-edge, linux-headers-gkeop, linux-tools-gkeop, linux-modules-extra-5.4.0-1058-azure, linux-tools-lowlatency-hwe-18.04-edge, linux-gke-5.4, linux-image-unsigned-5.4.0-1023-gkeop, linux-lowlatency, linux-headers-lowlatency-hwe-18.04, linux-image-5.4.0-1046-kvm, linux-headers-gcp-lts-20.04, linux-tools-azure-lts-20.04, linux-tools-generic-lpae, linux-headers-oracle, linux-tools-generic-hwe-18.04, linux-signed-image-azure, linux-headers-virtual-hwe-18.04-edge, linux-cloud-tools-azure, linux-tools-lowlatency, linux-headers-5.4.0-84, linux-headers-generic, linux-aws-5.4-cloud-tools-5.4.0-1056, linux-oracle-lts-20.04, linux-generic-hwe-18.04-edge, linux-headers-gke-5.4, linux-buildinfo-5.4.0-1052-gke, linux-cloud-tools-common, linux-virtual-hwe-18.04-edge, linux-cloud-tools-virtual-hwe-18.04-edge, linux-modules-extra-oracle, linux-cloud-tools-5.4.0-1058-azure, linux-modules-extra-aws-lts-20.04, linux-cloud-tools-azure-lts-20.04, linux-tools-gke-5.4, linux-headers-5.4.0-1058-azure, linux-gcp-tools-5.4.0-1052, linux-headers-5.4.0-84-generic-lpae, linux-image-azure, linux-tools-azure-edge, linux-gcp-edge, linux-signed-azure, linux-image-extra-virtual-hwe-18.04-edge, linux-cloud-tools-gkeop-5.4, linux-buildinfo-5.4.0-1058-azure, linux-oracle, linux-buildinfo-5.4.0-1023-gkeop, linux-buildinfo-5.4.0-1046-kvm, linux-gkeop, linux-headers-5.4.0-1052-gke, linux-tools-5.4.0-1054-oracle, linux-headers-virtual-hwe-18.04, linux-modules-extra-gcp-lts-20.04, linux-tools-aws, linux-gkeop-5.4-headers-5.4.0-1023, linux-tools-oracle-edge, linux-gcp-5.4-tools-5.4.0-1052, linux-image-unsigned-5.4.0-1052-gke, linux-headers-generic-hwe-18.04-edge, linux-azure-5.4-tools-5.4.0-1058, linux-headers-oem-osp1, linux, linux-aws-headers-5.4.0-1056, linux-tools-generic, linux-gkeop-headers-5.4.0-1023, linux-cloud-tools-lowlatency-hwe-18.04, linux-tools-generic-lpae-hwe-18.04, linux-image-5.4.0-1054-oracle, linux-tools-gcp-lts-20.04, linux-image-5.4.0-1052-gcp, linux-aws-cloud-tools-5.4.0-1056, linux-azure-5.4-cloud-tools-5.4.0-1058, linux-aws, linux-gkeop-5.4, linux-image-unsigned-5.4.0-84-generic, linux-generic-lpae-hwe-18.04-edge, linux-cloud-tools-lowlatency-hwe-18.04-edge, linux-image-lowlatency-hwe-18.04-edge, linux-image-5.4.0-84-generic, linux-gcp-headers-5.4.0-1052, linux-generic-lpae, linux-azure-cloud-tools-5.4.0-1058, linux-headers-5.4.0-84-generic, linux-aws-edge, linux-image-azure-lts-20.04, linux-modules-5.4.0-1052-gke, linux-azure-5.4, linux-gke-5.4-headers-5.4.0-1052, linux-modules-5.4.0-84-generic-lpae, linux-headers-oracle-lts-20.04, linux-modules-extra-azure-lts-20.04, linux-tools-kvm, linux-image-gke-5.4, linux-gcp-5.4, linux-cloud-tools-generic, linux-virtual-hwe-18.04, linux-tools-oem-osp1, linux-azure-headers-5.4.0-1058, linux-headers-kvm, linux-image-5.4.0-84-generic-lpae, linux-headers-aws-edge, linux-tools-5.4.0-84-generic-lpae, linux-aws-5.4-tools-5.4.0-1056, linux-buildinfo-5.4.0-84-generic-lpae, linux-modules-5.4.0-1054-oracle, linux-generic, linux-modules-extra-5.4.0-1054-oracle, linux-image-5.4.0-1056-aws, linux-headers-virtual, linux-image-unsigned-5.4.0-1054-oracle, linux-modules-extra-aws, linux-modules-extra-aws-edge, linux-oracle-tools-5.4.0-1054, linux-headers-azure, linux-source, linux-image-unsigned-5.4.0-84-lowlatency, linux-tools-5.4.0-1023-gkeop, linux-tools-5.4.0-84-lowlatency, linux-image-aws, linux-image-unsigned-5.4.0-1052-gcp, linux-tools-gke, linux-modules-extra-azure, linux-oracle-headers-5.4.0-1054, linux-cloud-tools-lowlatency, linux-headers-generic-lpae-hwe-18.04-edge, linux-gkeop-5.4-tools-5.4.0-1023, linux-image-gcp, linux-kvm-tools-5.4.0-1046, linux-oem-osp1-tools-host, linux-signed-oracle-edge, linux-headers-5.4.0-84-lowlatency, linux-tools-5.4.0-1046-kvm o USN-5070-1 : linux-image-5.11.0-34-lowlatency, linux-tools-generic-hwe-20.04-edge, linux-image-oem-20.04, linux-tools-raspi-nolpae, linux-raspi-nolpae, linux-tools-5.11.0-34-lowlatency, linux-azure-tools-5.11.0-1015, linux-tools-5.11.0-1017-aws, linux-cloud-tools-5.11.0-1017-aws, linux-headers-generic-lpae-hwe-20.04, linux-lowlatency-hwe-20.04, linux-image-oracle, linux-tools-5.11.0-34-generic-lpae, linux-cloud-tools-generic-hwe-20.04, linux-tools-virtual-hwe-20.04, linux-azure-headers-5.11.0-1015, linux-headers-5.11.0-34-lowlatency, linux-buildinfo-5.11.0-1015-kvm, linux-image-azure-edge, linux-tools-raspi, linux-image-raspi-nolpae, linux-oem-20.04, linux-hwe-5.11-cloud-tools-common, linux-headers-5.11.0-1017-aws, linux-kvm-headers-5.11.0-1015, linux-aws-cloud-tools-5.11.0-1017, linux-gcp, linux-image-lowlatency-hwe-20.04, linux-headers-oracle-edge, linux-headers-gcp, linux-doc, linux-headers-5.11.0-34-generic-lpae, linux-image-virtual, linux-tools-generic-lpae-hwe-20.04-edge, linux-azure-cloud-tools-5.11.0-1015, linux-tools-generic-64k, linux-modules-extra-gcp, linux-buildinfo-5.11.0-34-generic-64k, linux-virtual-hwe-20.04-edge, linux-oracle-5.11-tools-5.11.0-1017, linux-tools-5.11.0-34-generic-64k, linux-cloud-tools-azure-edge, linux-headers-generic-hwe-20.04, linux-tools-generic-64k-hwe-20.04-edge, linux-headers-generic-64k-hwe-20.04, linux-image-extra-virtual, linux-modules-5.11.0-1017-aws, linux-image-unsigned-5.11.0-1018-gcp, linux-image-5.11.0-1017-raspi-nolpae, linux-modules-5.11.0-34-generic-64k, linux-cloud-tools-virtual-hwe-20.04, linux-headers-azure-edge, linux-tools-gcp, linux-cloud-tools-lowlatency-hwe-20.04-edge, linux-cloud-tools-virtual, linux-generic-lpae-hwe-20.04-edge, linux-image-5.11.0-34-generic-64k, linux-image-5.11.0-34-generic, linux-modules-extra-5.11.0-1017-aws, linux-tools-aws-edge, linux-hwe-5.11-source-5.11.0, linux-azure, linux-tools-5.11.0-1017-raspi-nolpae, linux-headers-5.11.0-1017-oracle, linux-image-5.11.0-1017-raspi, linux-crashdump, linux-image-virtual-hwe-20.04-edge, linux-modules-5.11.0-1018-gcp, linux-tools-azure, linux-raspi-headers-5.11.0-1017, linux-gke, linux-tools-virtual, linux-aws-5.11, linux-headers-lowlatency, linux-headers-5.11.0-34-generic-64k, linux-image-gke, linux-modules-extra-azure-edge, linux-image-generic-lpae-hwe-20.04, linux-generic-hwe-20.04-edge, linux-headers-generic-64k-hwe-20.04-edge, linux-image-5.11.0-1018-gcp, linux-libc-dev, linux-buildinfo-5.11.0-34-generic-lpae, linux-modules-5.11.0-1015-kvm, linux-modules-5.11.0-34-lowlatency, linux-tools-oracle, linux-image-oracle-edge, linux-headers-5.11.0-1015-kvm, linux-headers-5.11.0-1015-azure, linux-lowlatency-hwe-20.04-edge, linux-gcp-tools-5.11.0-1018, linux-oracle-edge, linux-headers-5.11.0-34-generic, linux-headers-aws, linux-image-unsigned-5.11.0-34-lowlatency, linux-headers-generic-lpae-hwe-20.04-edge, linux-aws-5.11-headers-5.11.0-1017, linux-image-generic-lpae, linux-modules-5.11.0-1017-raspi-nolpae, linux-kvm, linux-modules-extra-5.11.0-1018-gcp, linux-tools-5.11.0-1017-raspi, linux-image-unsigned-5.11.0-1015-kvm, linux-image-extra-virtual-hwe-20.04-edge, linux-image-5.11.0-1015-kvm, linux-image-generic-64k-hwe-20.04, linux-headers-generic-lpae, linux-image-virtual-hwe-20.04, linux-oracle-headers-5.11.0-1017, linux-tools-host, linux-image-unsigned-5.11.0-1017-oracle, linux-image-generic, linux-image-lowlatency, linux-modules-extra-gke, linux-gcp-headers-5.11.0-1018, linux-azure-edge, linux-headers-virtual-hwe-20.04-edge, linux-image-aws-edge, linux-image-kvm, linux-raspi, linux-virtual, linux-tools-common, linux-buildinfo-5.11.0-1015-azure, linux-image-raspi, linux-buildinfo-5.11.0-1017-oracle, linux-buildinfo-5.11.0-1017-raspi, linux-image-generic-lpae-hwe-20.04-edge, linux-cloud-tools-generic-hwe-20.04-edge, linux-tools-5.11.0-1015-azure, linux-lowlatency, linux-buildinfo-5.11.0-1017-aws, linux-tools-5.11.0-1015-kvm, linux-headers-5.11.0-34, linux-tools-generic-lpae, linux-headers-oracle, linux-hwe-5.11, linux-tools-5.11.0-1018-gcp, linux-modules-5.11.0-34-generic-lpae, linux-aws-5.11-cloud-tools-5.11.0-1017, linux-aws-headers-5.11.0-1017, linux-cloud-tools-azure, linux-generic-64k-hwe-20.04, linux-tools-lowlatency, linux-tools-lowlatency-hwe-20.04, linux-tools-virtual-hwe-20.04-edge, linux-headers-generic, linux-hwe-5.11-tools-common, linux-headers-5.11.0-1017-raspi-nolpae, linux-cloud-tools-common, linux-headers-oem-20.04, linux-tools-5.11.0-1017-oracle, linux-tools-lowlatency-hwe-20.04-edge, linux-headers-lowlatency-hwe-20.04, linux-headers-generic-hwe-20.04-edge, linux-image-azure, linux-azure-5.11-cloud-tools-5.11.0-1015, linux-cloud-tools-5.11.0-34-generic, linux-azure-5.11-headers-5.11.0-1015, linux-generic-lpae-hwe-20.04, linux-image-generic-hwe-20.04-edge, linux-hwe-5.11-tools-5.11.0-34, linux-oracle, linux-tools-azure-edge, linux-image-generic-64k, linux-modules-extra-5.11.0-1017-oracle, linux-oracle-5.11, linux-cloud-tools-5.11.0-1015-azure, linux-buildinfo-5.11.0-1018-gcp, linux-buildinfo-5.11.0-34-generic, linux-image-generic-64k-hwe-20.04-edge, linux-tools-aws, linux-tools-generic-lpae-hwe-20.04, linux-generic-64k, linux-modules-5.11.0-1017-oracle, linux-tools-oracle-edge, linux-tools-5.11.0-34, linux-oracle-5.11-headers-5.11.0-1017, linux-tools-generic-hwe-20.04, linux-generic-hwe-20.04, linux, linux-modules-5.11.0-1015-azure, linux-image-5.11.0-1015-azure, linux-tools-generic, linux-aws-tools-5.11.0-1017, linux-image-extra-virtual-hwe-20.04, linux-image-generic-hwe-20.04, linux-modules-extra-5.11.0-1015-azure, linux-kvm-tools-5.11.0-1015, linux-aws, linux-cloud-tools-virtual-hwe-20.04-edge, linux-hwe-5.11-cloud-tools-5.11.0-34, linux-generic-lpae, linux-aws-edge, linux-modules-extra-5.11.0-34-generic, linux-tools-generic-64k-hwe-20.04, linux-cloud-tools-5.11.0-34, linux-headers-5.11.0-1017-raspi, linux-oracle-tools-5.11.0-1017, linux-tools-kvm, linux-image-5.11.0-34-generic-lpae, linux-source-5.11.0, linux-headers-lowlatency-hwe-20.04-edge, linux-hwe-5.11-tools-host, linux-virtual-hwe-20.04, linux-cloud-tools-generic, linux-aws-5.11-tools-5.11.0-1017, linux-image-5.11.0-1017-oracle, linux-modules-5.11.0-34-generic, linux-tools-oem-20.04, linux-headers-kvm, linux-headers-aws-edge, linux-headers-raspi, linux-generic-64k-hwe-20.04-edge, linux-headers-5.11.0-1018-gcp, linux-cloud-tools-5.11.0-34-lowlatency, linux-generic, linux-buildinfo-5.11.0-1017-raspi-nolpae, linux-headers-virtual, linux-modules-extra-aws-edge, linux-modules-extra-aws, linux-source, linux-headers-generic-64k, linux-azure-5.11, linux-headers-azure, linux-image-lowlatency-hwe-20.04-edge, linux-modules-5.11.0-1017-raspi, linux-image-aws, linux-buildinfo-5.11.0-34-lowlatency, linux-image-unsigned-5.11.0-34-generic, linux-modules-extra-azure, linux-raspi-tools-5.11.0-1017, linux-headers-raspi-nolpae, linux-tools-5.11.0-34-generic, linux-tools-gke, linux-cloud-tools-lowlatency, linux-hwe-5.11-headers-5.11.0-34, linux-image-5.11.0-1017-aws, linux-image-gcp, linux-headers-virtual-hwe-20.04, linux-cloud-tools-lowlatency-hwe-20.04, linux-image-unsigned-5.11.0-1015-azure, linux-headers-gke, linux-azure-5.11-tools-5.11.0-1015, linux-image-unsigned-5.11.0-34-generic-64k - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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