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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0305 Linux kernel vulnerabilities - USN-4253-1 USN-4255-1 USN-4254-1 USN-4258-1 USN-4254-2 USN-4253-2 USN-4255-2 29 January 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: linux kernel Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Access Privileged Data -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-7053 CVE-2019-19767 CVE-2019-19332 CVE-2019-19252 CVE-2019-19227 CVE-2019-19082 CVE-2019-19079 CVE-2019-19078 CVE-2019-19077 CVE-2019-19071 CVE-2019-19063 CVE-2019-19062 CVE-2019-19057 CVE-2019-19050 CVE-2019-18885 CVE-2019-18683 CVE-2019-15291 CVE-2019-15099 CVE-2019-14615 Reference: ASB-2020.0010 ESB-2020.0200 ESB-2020.0141 ESB-2020.0006 Original Bulletin: https://usn.ubuntu.com/4253-1/ https://usn.ubuntu.com/4255-1/ https://usn.ubuntu.com/4254-1/ https://usn.ubuntu.com/4258-1/ https://usn.ubuntu.com/4254-2/ https://usn.ubuntu.com/4253-2/ https://usn.ubuntu.com/4255-2/ Comment: This bulletin contains seven (7) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4253-1: Linux kernel vulnerability 28 January 2020 linux, linux-aws vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.10 Summary The Linux kernel could be made to expose sensitive information. Software Description o linux - Linux kernel o linux-aws - Linux kernel for Amazon Web Services (AWS) systems Details It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10 linux-image-5.3.0-1010-aws - 5.3.0-1010.11 linux-image-5.3.0-29-generic - 5.3.0-29.31 linux-image-5.3.0-29-generic-lpae - 5.3.0-29.31 linux-image-5.3.0-29-lowlatency - 5.3.0-29.31 linux-image-5.3.0-29-snapdragon - 5.3.0-29.31 linux-image-aws - 5.3.0.1010.12 linux-image-generic - 5.3.0.29.33 linux-image-generic-lpae - 5.3.0.29.33 linux-image-lowlatency - 5.3.0.29.33 linux-image-virtual - 5.3.0.29.33 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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-2019-14615 - -------------------------------------------------------------------------------- USN-4255-1: Linux kernel vulnerabilities 28 January 2020 linux, linux-aws, linux-oem vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description o linux - Linux kernel o linux-aws - Linux kernel for Amazon Web Services (AWS) systems o linux-oem - Linux kernel for OEM processors Details It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615) It was discovered that a race condition can lead to a use-after-free while destroying GEM contexts in the i915 driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-7053) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-4.15.0-1058-aws - 4.15.0-1058.60 linux-image-4.15.0-1067-oem - 4.15.0-1067.77 linux-image-4.15.0-76-generic - 4.15.0-76.86 linux-image-4.15.0-76-generic-lpae - 4.15.0-76.86 linux-image-4.15.0-76-lowlatency - 4.15.0-76.86 linux-image-aws - 4.15.0.1058.59 linux-image-aws-lts-18.04 - 4.15.0.1058.59 linux-image-generic - 4.15.0.76.78 linux-image-generic-lpae - 4.15.0.76.78 linux-image-lowlatency - 4.15.0.76.78 linux-image-oem - 4.15.0.1067.71 linux-image-powerpc-e500mc - 4.15.0.76.78 linux-image-powerpc-smp - 4.15.0.76.78 linux-image-powerpc64-emb - 4.15.0.76.78 linux-image-powerpc64-smp - 4.15.0.76.78 linux-image-virtual - 4.15.0.76.78 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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-2019-14615 o CVE-2020-7053 - -------------------------------------------------------------------------------- USN-4254-1: Linux kernel vulnerabilities 28 January 2020 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 16.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description o linux - Linux kernel o linux-aws - Linux kernel for Amazon Web Services (AWS) systems o linux-kvm - Linux kernel for cloud environments o linux-raspi2 - Linux kernel for Raspberry Pi 2 o linux-snapdragon - Linux kernel for Snapdragon processors Details It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615) It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. (CVE-2019-18683) It was discovered that the btrfs file system in the Linux kernel did not properly validate metadata, leading to a NULL pointer dereference. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2019-18885) It was discovered that multiple memory leaks existed in the Marvell WiFi-Ex Driver for the Linux kernel. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19057) It was discovered that the crypto subsystem in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19062) It was discovered that the Realtek rtlwifi USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19063) Dan Carpenter discovered that the AppleTalk networking subsystem of the Linux kernel did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-19227) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle ioctl requests to get emulated CPUID features. An attacker with access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-19332) It was discovered that the B2C2 FlexCop USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15291) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS linux-image-4.4.0-1065-kvm - 4.4.0-1065.72 linux-image-4.4.0-1101-aws - 4.4.0-1101.112 linux-image-4.4.0-1128-raspi2 - 4.4.0-1128.137 linux-image-4.4.0-1132-snapdragon - 4.4.0-1132.140 linux-image-4.4.0-173-generic - 4.4.0-173.203 linux-image-4.4.0-173-generic-lpae - 4.4.0-173.203 linux-image-4.4.0-173-lowlatency - 4.4.0-173.203 linux-image-4.4.0-173-powerpc-e500mc - 4.4.0-173.203 linux-image-4.4.0-173-powerpc-smp - 4.4.0-173.203 linux-image-4.4.0-173-powerpc64-emb - 4.4.0-173.203 linux-image-4.4.0-173-powerpc64-smp - 4.4.0-173.203 linux-image-aws - 4.4.0.1101.105 linux-image-generic - 4.4.0.173.181 linux-image-generic-lpae - 4.4.0.173.181 linux-image-kvm - 4.4.0.1065.65 linux-image-lowlatency - 4.4.0.173.181 linux-image-powerpc-e500mc - 4.4.0.173.181 linux-image-powerpc-smp - 4.4.0.173.181 linux-image-powerpc64-emb - 4.4.0.173.181 linux-image-powerpc64-smp - 4.4.0.173.181 linux-image-raspi2 - 4.4.0.1128.128 linux-image-snapdragon - 4.4.0.1132.124 linux-image-virtual - 4.4.0.173.181 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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-2019-14615 o CVE-2019-15291 o CVE-2019-18683 o CVE-2019-18885 o CVE-2019-19057 o CVE-2019-19062 o CVE-2019-19063 o CVE-2019-19227 o CVE-2019-19332 - -------------------------------------------------------------------------------- USN-4258-1: Linux kernel vulnerabilities 29 January 2020 linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-oracle-5.0 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description o linux-aws-5.0 - Linux kernel for Amazon Web Services (AWS) systems o linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems o linux-gke-5.0 - Linux kernel for Google Container Engine (GKE) systems o linux-oracle-5.0 - Linux kernel for Oracle Cloud systems Details It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15099) It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. (CVE-2019-18683) It was discovered that the btrfs file system in the Linux kernel did not properly validate metadata, leading to a NULL pointer dereference. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2019-18885) It was discovered that the crypto subsystem in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19050, CVE-2019-19062) It was discovered that the RSI 91x WLAN device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19071) It was discovered that the Broadcom Netxtreme HCA device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19077) It was discovered that the Atheros 802.11ac wireless USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19078) It was discovered that the Qualcomm IPC Router TUN device driver in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19079) It was discovered that the AMD GPU device drivers in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to possibly cause a denial of service (kernel memory exhaustion). (CVE-2019-19082) Dan Carpenter discovered that the AppleTalk networking subsystem of the Linux kernel did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-19227) Or Cohen discovered that the virtual console subsystem in the Linux kernel did not properly restrict writes to unimplemented vcsu (unicode) devices. A local attacker could possibly use this to cause a denial of service (system crash) or have other unspecified impacts. (CVE-2019-19252) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle ioctl requests to get emulated CPUID features. An attacker with access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-19332) It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle certain conditions. An attacker could use this to specially craft an ext4 file system that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19767) It was discovered that the B2C2 FlexCop USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15291) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-5.0.0-1010-oracle - 5.0.0-1010.15~18.04.1 linux-image-5.0.0-1024-aws - 5.0.0-1024.27~18.04.1 linux-image-5.0.0-1029-gcp - 5.0.0-1029.30~18.04.1 linux-image-5.0.0-1029-gke - 5.0.0-1029.30~18.04.1 linux-image-aws-edge - 5.0.0.1024.38 linux-image-gcp - 5.0.0.1029.33 linux-image-gke-5.0 - 5.0.0.1029.17 linux-image-oracle-edge - 5.0.0.1010.9 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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-2019-15099 o CVE-2019-15291 o CVE-2019-18683 o CVE-2019-18885 o CVE-2019-19050 o CVE-2019-19062 o CVE-2019-19071 o CVE-2019-19077 o CVE-2019-19078 o CVE-2019-19079 o CVE-2019-19082 o CVE-2019-19227 o CVE-2019-19252 o CVE-2019-19332 o CVE-2019-19767 - -------------------------------------------------------------------------------- USN-4254-2: Linux kernel (Xenial HWE) vulnerabilities 29 January 2020 linux-lts-xenial, linux-aws vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 14.04 ESM Summary Several security issues were fixed in the Linux kernel. Software Description o linux-aws - Linux kernel for Amazon Web Services (AWS) systems o linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty Details USN-4254-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615) It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. (CVE-2019-18683) It was discovered that the btrfs file system in the Linux kernel did not properly validate metadata, leading to a NULL pointer dereference. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2019-18885) It was discovered that multiple memory leaks existed in the Marvell WiFi-Ex Driver for the Linux kernel. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19057) It was discovered that the crypto subsystem in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19062) It was discovered that the Realtek rtlwifi USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19063) Dan Carpenter discovered that the AppleTalk networking subsystem of the Linux kernel did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-19227) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle ioctl requests to get emulated CPUID features. An attacker with access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-19332) It was discovered that the B2C2 FlexCop USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15291) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM linux-image-4.4.0-1061-aws - 4.4.0-1061.65 linux-image-4.4.0-173-generic - 4.4.0-173.203~14.04.1 linux-image-4.4.0-173-generic-lpae - 4.4.0-173.203~14.04.1 linux-image-4.4.0-173-lowlatency - 4.4.0-173.203~14.04.1 linux-image-4.4.0-173-powerpc-e500mc - 4.4.0-173.203~14.04.1 linux-image-4.4.0-173-powerpc-smp - 4.4.0-173.203~14.04.1 linux-image-4.4.0-173-powerpc64-emb - 4.4.0-173.203~14.04.1 linux-image-4.4.0-173-powerpc64-smp - 4.4.0-173.203~14.04.1 linux-image-aws - 4.4.0.1061.62 linux-image-generic-lpae-lts-xenial - 4.4.0.173.152 linux-image-generic-lts-xenial - 4.4.0.173.152 linux-image-lowlatency-lts-xenial - 4.4.0.173.152 linux-image-powerpc-e500mc-lts-xenial - 4.4.0.173.152 linux-image-powerpc-smp-lts-xenial - 4.4.0.173.152 linux-image-powerpc64-emb-lts-xenial - 4.4.0.173.152 linux-image-powerpc64-smp-lts-xenial - 4.4.0.173.152 linux-image-virtual-lts-xenial - 4.4.0.173.152 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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 USN-4254-1 o CVE-2019-14615 o CVE-2019-15291 o CVE-2019-18683 o CVE-2019-18885 o CVE-2019-19057 o CVE-2019-19062 o CVE-2019-19063 o CVE-2019-19227 o CVE-2019-19332 - -------------------------------------------------------------------------------- USN-4253-2: Linux kernel (HWE) vulnerability 28 January 2020 linux-hwe vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.04 LTS Summary he Linux kernel could be made to expose sensitive information. Software Description o linux-hwe - Linux hardware enablement (HWE) kernel Details USN-4253-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.10 for Ubuntu 18.04 LTS. It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-5.3.0-28-generic - 5.3.0-28.30~18.04.1 linux-image-5.3.0-28-generic-lpae - 5.3.0-28.30~18.04.1 linux-image-5.3.0-28-lowlatency - 5.3.0-28.30~18.04.1 linux-image-generic-hwe-18.04 - 5.3.0.28.96 linux-image-generic-lpae-hwe-18.04 - 5.3.0.28.96 linux-image-lowlatency-hwe-18.04 - 5.3.0.28.96 linux-image-snapdragon-hwe-18.04 - 5.3.0.28.96 linux-image-virtual-hwe-18.04 - 5.3.0.28.96 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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 USN-4253-1 o CVE-2019-14615 - -------------------------------------------------------------------------------- USN-4255-2: Linux kernel (HWE) vulnerabilities 28 January 2020 linux-hwe, linux-aws-hwe vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 16.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description o linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems o linux-hwe - Linux hardware enablement (HWE) kernel Details USN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615) It was discovered that a race condition can lead to a use-after-free while destroying GEM contexts in the i915 driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-7053) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS linux-image-4.15.0-1058-aws - 4.15.0-1058.60~16.04.1 linux-image-4.15.0-76-generic - 4.15.0-76.86~16.04.1 linux-image-4.15.0-76-generic-lpae - 4.15.0-76.86~16.04.1 linux-image-4.15.0-76-lowlatency - 4.15.0-76.86~16.04.1 linux-image-aws-hwe - 4.15.0.1058.58 linux-image-generic-hwe-16.04 - 4.15.0.76.96 linux-image-generic-lpae-hwe-16.04 - 4.15.0.76.96 linux-image-lowlatency-hwe-16.04 - 4.15.0.76.96 linux-image-oem - 4.15.0.76.96 linux-image-virtual-hwe-16.04 - 4.15.0.76.96 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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 USN-4255-1 o CVE-2019-14615 o CVE-2020-7053 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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