Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.1300
USN-4915-1: Linux kernel (OEM) vulnerabilities
16 April 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux kernel
Linux kernel (OEM)
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-29154 CVE-2021-3493 CVE-2021-3492
Reference: ESB-2021.1251
Original Bulletin:
https://ubuntu.com/security/notices/USN-4915-1
https://ubuntu.com/security/notices/USN-4916-1
https://ubuntu.com/security/notices/USN-4917-1
Comment: This bulletin contains three (3) Ubuntu security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
USN-4915-1: Linux kernel (OEM) vulnerabilities
15 April 2021
Several security issues were fixed in the Linux kernel.
Releases
o Ubuntu 20.04 LTS
Packages
o linux-oem-5.6 - Linux kernel for OEM systems
Details
It was discovered that the overlayfs implementation in the Linux kernel did
not properly validate the application of file system capabilities with
respect to user namespaces. A local attacker could use this to gain
elevated privileges. ( CVE-2021-3493 )
Vincent Dehors discovered that the shiftfs file system in the Ubuntu Linux
kernel did not properly handle faults in copy_from_user() when passing
through ioctls to an underlying file system. A local attacker could use
this to cause a denial of service (memory exhaustion) or execute arbitrary
code. ( CVE-2021-3492 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o linux-image-oem-20.04 - 5.6.0.1054.50
o linux-image-5.6.0-1054-oem - 5.6.0-1054.58
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-2021-3493
o CVE-2021-3492
Related notices
o USN-4916-1 : linux-image-gcp-lts-18.04, linux-image-powerpc64-smp,
linux-image-azure, linux-image-4.4.0-209-lowlatency,
linux-image-4.4.0-209-powerpc64-emb, linux-dell300x, linux-image-oem,
linux-image-lowlatency, linux-image-4.15.0-1090-kvm,
linux-image-4.15.0-142-generic-lpae, linux-image-gcp,
linux-image-4.4.0-209-powerpc64-smp, linux-image-oracle,
linux-image-aws-lts-18.04, linux-image-aws-hwe, linux-image-powerpc64-emb,
linux-azure, linux-image-4.15.0-1113-azure, linux-image-4.4.0-1091-aws,
linux-image-4.4.0-1127-aws, linux-image-generic-lpae-lts-xenial,
linux-image-4.4.0-1155-snapdragon, linux-image-aws,
linux-image-4.15.0-142-lowlatency, linux-image-oracle-lts-18.04,
linux-image-generic, linux-image-4.4.0-209-generic-lpae,
linux-image-4.15.0-142-generic, linux-image-generic-lpae-hwe-16.04,
linux-image-4.4.0-209-powerpc-e500mc, linux-image-snapdragon,
linux-image-4.4.0-1092-kvm, linux-lts-xenial,
linux-image-virtual-hwe-16.04, linux-oracle, linux-raspi2,
linux-image-4.15.0-1098-gcp, linux-image-4.4.0-209-generic, linux,
linux-image-powerpc-e500mc-lts-xenial, linux-image-powerpc-smp,
linux-azure-4.15, linux-snapdragon, linux-image-lowlatency-lts-xenial,
linux-image-powerpc-smp-lts-xenial, linux-image-powerpc64-smp-lts-xenial,
linux-image-powerpc-e500mc, linux-image-generic-lts-xenial,
linux-image-dell300x, linux-image-4.4.0-209-powerpc-smp,
linux-image-generic-lpae, linux-image-4.15.0-1084-raspi2, linux-hwe,
linux-aws-hwe, linux-image-gke, linux-gcp,
linux-image-4.15.0-1017-dell300x, linux-gcp-4.15,
linux-image-4.15.0-1101-snapdragon, linux-image-generic-hwe-16.04,
linux-kvm, linux-image-kvm, linux-image-virtual-lts-xenial,
linux-image-4.15.0-1099-aws, linux-image-4.15.0-1070-oracle,
linux-image-4.4.0-1151-raspi2, linux-image-raspi2, linux-aws,
linux-image-powerpc64-emb-lts-xenial, linux-image-azure-lts-18.04,
linux-image-lowlatency-hwe-16.04, linux-image-virtual
o USN-4917-1 : linux-image-azure, linux-image-5.8.0-1029-azure,
linux-image-oem, linux-image-5.10.0-1022-oem,
linux-image-generic-lpae-hwe-18.04, linux-azure,
linux-image-5.8.0-1021-raspi, linux-image-oem-20.04,
linux-image-5.4.0-1042-gke, linux-image-generic,
linux-image-5.4.0-72-generic, linux-image-5.8.0-1028-gcp,
linux-image-generic-64k-hwe-20.04, linux, linux-image-lowlatency-hwe-20.04,
linux-image-5.3.0-1042-gke, linux-image-gkeop-5.4,
linux-image-generic-lpae, linux-image-generic-lpae-hwe-20.04, linux-aws,
linux-raspi2-5.3, linux-image-5.8.0-1024-kvm, linux-gkeop-5.4,
linux-image-virtual, linux-image-generic-hwe-18.04, linux-image-lowlatency,
linux-image-gcp, linux-image-gke-5.3, linux-image-5.4.0-72-generic-lpae,
linux-image-gke-5.4, linux-azure-5.4, linux-image-5.8.0-1026-oracle,
linux-gke-5.3, linux-image-generic-hwe-20.04, linux-hwe, linux-gcp,
linux-image-kvm, linux-image-5.4.0-1045-aws, linux-image-5.4.0-1038-kvm,
linux-raspi-5.4, linux-image-5.8.0-50-lowlatency,
linux-image-lowlatency-hwe-18.04, linux-image-oracle, linux-aws-5.4,
linux-image-generic-64k, linux-image-virtual-hwe-18.04,
linux-image-5.4.0-1014-gkeop, linux-oracle-5.4,
linux-image-snapdragon-hwe-18.04, linux-image-5.4.0-1034-raspi,
linux-image-5.4.0-1046-azure, linux-image-raspi2-hwe-18.04, linux-oracle,
linux-image-5.8.0-1021-raspi-nolpae, linux-hwe-5.4, linux-gkeop,
linux-oem-5.10, linux-image-gkeop, linux-image-5.8.0-1030-aws,
linux-image-raspi-hwe-18.04, linux-kvm, linux-hwe-5.8,
linux-image-5.3.0-73-generic, linux-image-oem-osp1,
linux-image-virtual-hwe-20.04, linux-image-gkeop-5.3, linux-gcp-5.4,
linux-image-5.3.0-73-lowlatency, linux-image-oem-20.04b, linux-raspi,
linux-image-5.8.0-50-generic-lpae, linux-image-aws,
linux-image-5.4.0-72-lowlatency, linux-image-raspi-nolpae,
linux-image-5.4.0-1042-gcp, linux-image-5.8.0-50-generic,
linux-image-5.4.0-1043-oracle, linux-image-raspi, linux-gke-5.4,
linux-image-gke, linux-image-raspi2, linux-image-5.8.0-50-generic-64k,
linux-image-5.3.0-1039-raspi2
- --------------------------------------------------------------------------------
USN-4916-1: Linux kernel vulnerabilities
15 April 2021
Several security issues were fixed in the Linux kernel.
Releases
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
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-gcp - Linux kernel for Google Cloud Platform (GCP) systems
o linux-gcp-4.15 - Linux kernel for Google Cloud Platform (GCP) systems
o linux-hwe - Linux hardware enablement (HWE) kernel
o linux-kvm - Linux kernel for cloud environments
o linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty
o linux-oracle - Linux kernel for Oracle Cloud systems
o linux-raspi2 - Linux kernel for Raspberry Pi (V8) systems
o linux-snapdragon - Linux kernel for Qualcomm Snapdragon processors
Details
It was discovered that the overlayfs implementation in the Linux kernel did
not properly validate the application of file system capabilities with
respect to user namespaces. A local attacker could use this to gain
elevated privileges. ( CVE-2021-3493 )
Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux
kernel did not properly validate computation of branch displacements in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. ( CVE-2021-29154 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04
o linux-image-virtual - 4.15.0.142.129
o linux-image-powerpc-e500mc - 4.15.0.142.129
o linux-image-4.15.0-1113-azure - 4.15.0-1113.126
o linux-image-4.15.0-1098-gcp - 4.15.0-1098.111
o linux-image-gcp-lts-18.04 - 4.15.0.1098.116
o linux-image-4.15.0-1017-dell300x - 4.15.0-1017.21
o linux-image-4.15.0-142-generic - 4.15.0-142.146
o linux-image-4.15.0-1070-oracle - 4.15.0-1070.78
o linux-image-oracle-lts-18.04 - 4.15.0.1070.80
o linux-image-4.15.0-1084-raspi2 - 4.15.0-1084.89
o linux-image-4.15.0-142-generic-lpae - 4.15.0-142.146
o linux-image-raspi2 - 4.15.0.1084.81
o linux-image-4.15.0-142-lowlatency - 4.15.0-142.146
o linux-image-snapdragon - 4.15.0.1101.104
o linux-image-powerpc64-emb - 4.15.0.142.129
o linux-image-dell300x - 4.15.0.1017.19
o linux-image-aws-lts-18.04 - 4.15.0.1099.102
o linux-image-generic - 4.15.0.142.129
o linux-image-4.15.0-1099-aws - 4.15.0-1099.106
o linux-image-4.15.0-1101-snapdragon - 4.15.0-1101.110
o linux-image-kvm - 4.15.0.1090.86
o linux-image-4.15.0-1090-kvm - 4.15.0-1090.92
o linux-image-azure-lts-18.04 - 4.15.0.1113.86
o linux-image-powerpc-smp - 4.15.0.142.129
o linux-image-generic-lpae - 4.15.0.142.129
o linux-image-powerpc64-smp - 4.15.0.142.129
o linux-image-lowlatency - 4.15.0.142.129
Ubuntu 16.04
o linux-image-virtual - 4.4.0.209.215
o linux-image-lowlatency-hwe-16.04 - 4.15.0.142.137
o linux-image-4.4.0-1155-snapdragon - 4.4.0-1155.165
o linux-image-4.15.0-1113-azure - 4.15.0-1113.126~16.04.1
o linux-image-4.4.0-209-powerpc-e500mc - 4.4.0-209.241
o linux-image-4.15.0-1098-gcp - 4.15.0-1098.111~16.04.1
o linux-image-4.4.0-209-generic-lpae - 4.4.0-209.241
o linux-image-4.4.0-209-lowlatency - 4.4.0-209.241
o linux-image-oracle - 4.15.0.1070.58
o linux-image-azure - 4.15.0.1113.104
o linux-image-generic-lpae-hwe-16.04 - 4.15.0.142.137
o linux-image-4.15.0-142-generic - 4.15.0-142.146~16.04.1
o linux-image-4.4.0-209-powerpc-smp - 4.4.0-209.241
o linux-image-4.15.0-1070-oracle - 4.15.0-1070.78~16.04.1
o linux-image-powerpc-e500mc - 4.4.0.209.215
o linux-image-4.4.0-1127-aws - 4.4.0-1127.141
o linux-image-4.15.0-142-generic-lpae - 4.15.0-142.146~16.04.1
o linux-image-4.15.0-142-lowlatency - 4.15.0-142.146~16.04.1
o linux-image-snapdragon - 4.4.0.1155.147
o linux-image-4.4.0-209-generic - 4.4.0-209.241
o linux-image-powerpc64-emb - 4.4.0.209.215
o linux-image-powerpc64-smp - 4.4.0.209.215
o linux-image-gke - 4.15.0.1098.99
o linux-image-virtual-hwe-16.04 - 4.15.0.142.137
o linux-image-generic - 4.4.0.209.215
o linux-image-oem - 4.15.0.142.137
o linux-image-4.15.0-1099-aws - 4.15.0-1099.106~16.04.1
o linux-image-4.4.0-1092-kvm - 4.4.0-1092.101
o linux-image-aws - 4.4.0.1127.132
o linux-image-kvm - 4.4.0.1092.90
o linux-image-4.4.0-209-powerpc64-emb - 4.4.0-209.241
o linux-image-raspi2 - 4.4.0.1151.151
o linux-image-powerpc-smp - 4.4.0.209.215
o linux-image-4.4.0-209-powerpc64-smp - 4.4.0-209.241
o linux-image-generic-lpae - 4.4.0.209.215
o linux-image-gcp - 4.15.0.1098.99
o linux-image-generic-hwe-16.04 - 4.15.0.142.137
o linux-image-4.4.0-1151-raspi2 - 4.4.0-1151.162
o linux-image-lowlatency - 4.4.0.209.215
o linux-image-aws-hwe - 4.15.0.1099.92
Ubuntu 14.04
o linux-image-4.4.0-209-powerpc-smp - 4.4.0-209.241~14.04.1
o linux-image-lowlatency-lts-xenial - 4.4.0.209.182
o linux-image-4.4.0-209-powerpc64-smp - 4.4.0-209.241~14.04.1
o linux-image-4.4.0-1091-aws - 4.4.0-1091.95
o linux-image-4.4.0-209-powerpc64-emb - 4.4.0-209.241~14.04.1
o linux-image-4.15.0-1113-azure - 4.15.0-1113.126~14.04.1
o linux-image-4.4.0-209-powerpc-e500mc - 4.4.0-209.241~14.04.1
o linux-image-powerpc-e500mc-lts-xenial - 4.4.0.209.182
o linux-image-generic-lpae-lts-xenial - 4.4.0.209.182
o linux-image-powerpc64-smp-lts-xenial - 4.4.0.209.182
o linux-image-4.4.0-209-generic-lpae - 4.4.0-209.241~14.04.1
o linux-image-powerpc-smp-lts-xenial - 4.4.0.209.182
o linux-image-powerpc64-emb-lts-xenial - 4.4.0.209.182
o linux-image-4.4.0-209-lowlatency - 4.4.0-209.241~14.04.1
o linux-image-generic-lts-xenial - 4.4.0.209.182
o linux-image-aws - 4.4.0.1091.88
o linux-image-4.4.0-209-generic - 4.4.0-209.241~14.04.1
o linux-image-azure - 4.15.0.1113.86
o linux-image-virtual-lts-xenial - 4.4.0.209.182
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-2021-3493
o CVE-2021-29154
Related notices
o USN-4912-1 : linux-oem-5.6, linux-image-oem-20.04,
linux-image-5.6.0-1053-oem
o USN-4917-1 : linux-oracle, linux-image-aws,
linux-image-5.3.0-73-lowlatency, linux-image-5.8.0-1030-aws,
linux-image-5.4.0-72-generic-lpae, linux-image-generic-lpae,
linux-image-generic, linux-hwe-5.8, linux-gkeop, linux-oracle-5.4,
linux-hwe, linux-image-snapdragon-hwe-18.04, linux-image-raspi2,
linux-image-oem-osp1, linux-image-generic-64k, linux-image-oracle,
linux-image-raspi-hwe-18.04, linux-image-gkeop-5.4, linux-image-gkeop-5.3,
linux-image-5.4.0-1046-azure, linux-oem-5.10, linux-image-gke-5.3,
linux-image-lowlatency, linux-image-gke, linux-image-5.4.0-1043-oracle,
linux-image-5.8.0-1028-gcp, linux-image-generic-lpae-hwe-20.04,
linux-azure-5.4, linux-image-generic-lpae-hwe-18.04, linux-image-oem,
linux-image-oem-20.04b, linux-image-generic-hwe-20.04, linux-kvm,
linux-image-5.8.0-1026-oracle, linux-hwe-5.4,
linux-image-5.4.0-72-lowlatency, linux-image-5.4.0-72-generic,
linux-image-5.8.0-1021-raspi-nolpae, linux-gkeop-5.4,
linux-image-5.8.0-50-lowlatency, linux-image-virtual-hwe-20.04,
linux-image-5.8.0-1029-azure, linux-image-virtual, linux-gke-5.4,
linux-image-5.4.0-1038-kvm, linux-image-lowlatency-hwe-18.04,
linux-raspi2-5.3, linux-raspi-5.4, linux-image-raspi-nolpae,
linux-image-5.8.0-50-generic, linux-image-kvm, linux-gke-5.3,
linux-image-5.3.0-73-generic, linux-aws, linux,
linux-image-lowlatency-hwe-20.04, linux-image-5.8.0-50-generic-lpae,
linux-image-5.8.0-1024-kvm, linux-image-generic-64k-hwe-20.04,
linux-image-5.8.0-1021-raspi, linux-image-azure, linux-image-raspi,
linux-gcp-5.4, linux-image-generic-hwe-18.04, linux-aws-5.4, linux-azure,
linux-image-5.10.0-1022-oem, linux-image-5.4.0-1042-gke, linux-image-gkeop,
linux-image-raspi2-hwe-18.04, linux-image-gke-5.4, linux-image-oem-20.04,
linux-image-5.8.0-50-generic-64k, linux-raspi, linux-gcp,
linux-image-virtual-hwe-18.04, linux-image-gcp,
linux-image-5.3.0-1039-raspi2, linux-image-5.4.0-1042-gcp,
linux-image-5.4.0-1014-gkeop, linux-image-5.3.0-1042-gke,
linux-image-5.4.0-1045-aws, linux-image-5.4.0-1034-raspi
o USN-4915-1 : linux-oem-5.6, linux-image-5.6.0-1054-oem,
linux-image-oem-20.04
- --------------------------------------------------------------------------------
USN-4917-1: Linux kernel vulnerabilities
15 April 2021
Several security issues were fixed in the Linux kernel.
Releases
o Ubuntu 20.10
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-5.3 - 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-hwe - Linux hardware enablement (HWE) kernel
o linux-hwe-5.4 - Linux hardware enablement (HWE) kernel
o linux-hwe-5.8 - Linux hardware enablement (HWE) kernel
o linux-kvm - Linux kernel for cloud environments
o linux-oem-5.10 - Linux kernel for OEM systems
o linux-oracle - Linux kernel for Oracle Cloud systems
o linux-oracle-5.4 - Linux kernel for Oracle Cloud systems
o linux-raspi - Linux kernel for Raspberry Pi (V8) systems
o linux-raspi-5.4 - Linux kernel for Raspberry Pi (V8) systems
o linux-raspi2-5.3 - Linux kernel for Raspberry Pi (V8) systems
Details
It was discovered that the overlayfs implementation in the Linux kernel did
not properly validate the application of file system capabilities with
respect to user namespaces. A local attacker could use this to gain
elevated privileges. ( CVE-2021-3493 )
Vincent Dehors discovered that the shiftfs file system in the Ubuntu Linux
kernel did not properly handle faults in copy_from_user() when passing
through ioctls to an underlying file system. A local attacker could use
this to cause a denial of service (memory exhaustion) or execute arbitrary
code. ( CVE-2021-3492 )
Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux
kernel did not properly validate computation of branch displacements in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. ( CVE-2021-29154 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.10
o linux-image-5.8.0-1024-kvm - 5.8.0-1024.26
o linux-image-gke - 5.8.0.1028.28
o linux-image-oracle - 5.8.0.1026.25
o linux-image-5.8.0-1021-raspi-nolpae - 5.8.0-1021.24
o linux-image-raspi-nolpae - 5.8.0.1021.24
o linux-image-5.8.0-1021-raspi - 5.8.0-1021.24
o linux-image-oem-20.04 - 5.8.0.50.55
o linux-image-azure - 5.8.0.1029.29
o linux-image-virtual - 5.8.0.50.55
o linux-image-raspi - 5.8.0.1021.24
o linux-image-5.8.0-1030-aws - 5.8.0-1030.32
o linux-image-5.8.0-1029-azure - 5.8.0-1029.31
o linux-image-generic-64k - 5.8.0.50.55
o linux-image-5.8.0-50-generic-64k - 5.8.0-50.56
o linux-image-generic - 5.8.0.50.55
o linux-image-5.8.0-50-generic - 5.8.0-50.56
o linux-image-5.8.0-50-generic-lpae - 5.8.0-50.56
o linux-image-aws - 5.8.0.1030.32
o linux-image-kvm - 5.8.0.1024.26
o linux-image-5.8.0-50-lowlatency - 5.8.0-50.56
o linux-image-5.8.0-1028-gcp - 5.8.0-1028.29
o linux-image-generic-lpae - 5.8.0.50.55
o linux-image-gcp - 5.8.0.1028.28
o linux-image-5.8.0-1026-oracle - 5.8.0-1026.27
o linux-image-lowlatency - 5.8.0.50.55
Ubuntu 20.04
o linux-image-gkeop-5.4 - 5.4.0.1014.17
o linux-image-virtual-hwe-20.04 - 5.8.0.50.56~20.04.34
o linux-image-oem-20.04b - 5.10.0.1022.23
o linux-image-5.4.0-72-generic - 5.4.0-72.80
o linux-image-gkeop - 5.4.0.1014.17
o linux-image-oem-osp1 - 5.4.0.72.75
o linux-image-generic-hwe-20.04 - 5.8.0.50.56~20.04.34
o linux-image-5.4.0-72-generic-lpae - 5.4.0-72.80
o linux-image-oracle - 5.4.0.1043.40
o linux-image-5.4.0-72-lowlatency - 5.4.0-72.80
o linux-image-azure - 5.4.0.1046.44
o linux-image-generic-lpae-hwe-20.04 - 5.8.0.50.56~20.04.34
o linux-image-5.4.0-1046-azure - 5.4.0-1046.48
o linux-image-virtual - 5.4.0.72.75
o linux-image-5.4.0-1034-raspi - 5.4.0-1034.37
o linux-image-raspi - 5.4.0.1034.69
o linux-image-5.4.0-1043-oracle - 5.4.0-1043.46
o linux-image-5.8.0-50-generic-64k - 5.8.0-50.56~20.04.1
o linux-image-generic - 5.4.0.72.75
o linux-image-generic-64k-hwe-20.04 - 5.8.0.50.56~20.04.34
o linux-image-5.8.0-50-generic - 5.8.0-50.56~20.04.1
o linux-image-oem - 5.4.0.72.75
o linux-image-5.4.0-1014-gkeop - 5.4.0-1014.15
o linux-image-5.4.0-1045-aws - 5.4.0-1045.47
o linux-image-5.8.0-50-generic-lpae - 5.8.0-50.56~20.04.1
o linux-image-aws - 5.4.0.1045.46
o linux-image-kvm - 5.4.0.1038.36
o linux-image-5.8.0-50-lowlatency - 5.8.0-50.56~20.04.1
o linux-image-raspi2 - 5.4.0.1034.69
o linux-image-5.4.0-1042-gcp - 5.4.0-1042.45
o linux-image-generic-lpae - 5.4.0.72.75
o linux-image-gcp - 5.4.0.1042.51
o linux-image-5.4.0-1038-kvm - 5.4.0-1038.39
o linux-image-lowlatency-hwe-20.04 - 5.8.0.50.56~20.04.34
o linux-image-5.10.0-1022-oem - 5.10.0-1022.23
o linux-image-lowlatency - 5.4.0.72.75
Ubuntu 18.04
o linux-image-gkeop-5.4 - 5.4.0.1014.15~18.04.15
o linux-image-gkeop-5.3 - 5.3.0.73.130
o linux-image-5.4.0-72-generic - 5.4.0-72.80~18.04.1
o linux-image-oem-osp1 - 5.4.0.72.80~18.04.65
o linux-image-5.4.0-72-generic-lpae - 5.4.0-72.80~18.04.1
o linux-image-oracle - 5.4.0.1043.46~18.04.25
o linux-image-generic-hwe-18.04 - 5.4.0.72.80~18.04.65
o linux-image-azure - 5.4.0.1046.25
o linux-image-snapdragon-hwe-18.04 - 5.4.0.72.80~18.04.65
o linux-image-5.3.0-1039-raspi2 - 5.3.0-1039.41
o linux-image-5.4.0-72-lowlatency - 5.4.0-72.80~18.04.1
o linux-image-generic-lpae-hwe-18.04 - 5.4.0.72.80~18.04.65
o linux-image-5.4.0-1046-azure - 5.4.0-1046.48~18.04.1
o linux-image-5.4.0-1042-gke - 5.4.0-1042.44~18.04.1
o linux-image-5.3.0-73-generic - 5.3.0-73.69
o linux-image-5.4.0-1034-raspi - 5.4.0-1034.37~18.04.1
o linux-image-virtual-hwe-18.04 - 5.4.0.72.80~18.04.65
o linux-image-5.4.0-1043-oracle - 5.4.0-1043.46~18.04.1
o linux-image-5.3.0-73-lowlatency - 5.3.0-73.69
o linux-image-lowlatency-hwe-18.04 - 5.4.0.72.80~18.04.65
o linux-image-gke-5.3 - 5.3.0.1042.25
o linux-image-gke-5.4 - 5.4.0.1042.44~18.04.8
o linux-image-oem - 5.4.0.72.80~18.04.65
o linux-image-5.4.0-1014-gkeop - 5.4.0-1014.15~18.04.1
o linux-image-5.4.0-1045-aws - 5.4.0-1045.47~18.04.1
o linux-image-aws - 5.4.0.1045.27
o linux-image-5.3.0-1042-gke - 5.3.0-1042.45
o linux-image-5.4.0-1042-gcp - 5.4.0-1042.45~18.04.1
o linux-image-raspi-hwe-18.04 - 5.4.0.1034.36
o linux-image-gcp - 5.4.0.1042.29
o linux-image-raspi2-hwe-18.04 - 5.3.0.1039.28
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-2021-3492
o CVE-2021-3493
o CVE-2021-29154
Related notices
o USN-4912-1 : linux-oem-5.6, linux-image-oem-20.04,
linux-image-5.6.0-1053-oem
o USN-4916-1 : linux-snapdragon, linux-gcp-4.15, linux-dell300x,
linux-aws-hwe, linux-image-4.15.0-142-generic,
linux-image-lowlatency-lts-xenial, linux-image-4.4.0-209-generic-lpae,
linux-image-virtual-hwe-16.04, linux-image-4.15.0-1101-snapdragon,
linux-image-virtual-lts-xenial, linux-image-lowlatency,
linux-image-generic, linux-image-aws-lts-18.04,
linux-image-4.15.0-1098-gcp, linux-hwe, linux-aws, linux-image-oem,
linux-image-azure, linux-raspi2, linux-image-4.15.0-142-generic-lpae,
linux-azure, linux-azure-4.15, linux-image-generic-lpae-lts-xenial,
linux-gcp, linux-image-4.15.0-1017-dell300x,
linux-image-powerpc64-smp-lts-xenial, linux-image-4.15.0-1084-raspi2,
linux-image-generic-lts-xenial, linux-image-azure-lts-18.04,
linux-image-gke, linux-image-powerpc64-smp,
linux-image-generic-lpae-hwe-16.04, linux-image-powerpc64-emb,
linux-image-4.4.0-1155-snapdragon, linux-image-oracle, linux-image-virtual,
linux-image-4.15.0-1090-kvm, linux-image-gcp-lts-18.04,
linux-image-4.4.0-1127-aws, linux-image-powerpc-e500mc,
linux-image-powerpc-e500mc-lts-xenial, linux-image-aws-hwe,
linux-image-dell300x, linux-image-4.15.0-1099-aws,
linux-image-4.15.0-1113-azure, linux, linux-image-generic-lpae,
linux-image-4.4.0-1151-raspi2, linux-image-powerpc64-emb-lts-xenial,
linux-kvm, linux-image-gcp, linux-image-kvm,
linux-image-4.4.0-209-powerpc-e500mc, linux-image-4.4.0-209-powerpc-smp,
linux-lts-xenial, linux-image-4.4.0-209-generic,
linux-image-4.15.0-142-lowlatency, linux-image-aws,
linux-image-4.4.0-209-lowlatency, linux-image-powerpc-smp,
linux-image-raspi2, linux-image-4.4.0-209-powerpc64-smp,
linux-image-generic-hwe-16.04, linux-image-4.4.0-1091-aws, linux-oracle,
linux-image-4.4.0-1092-kvm, linux-image-4.4.0-209-powerpc64-emb,
linux-image-lowlatency-hwe-16.04, linux-image-oracle-lts-18.04,
linux-image-4.15.0-1070-oracle, linux-image-snapdragon,
linux-image-powerpc-smp-lts-xenial
o USN-4915-1 : linux-oem-5.6, linux-image-5.6.0-1054-oem,
linux-image-oem-20.04
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