1. Ubuntu Security Notices
  2. USN-5317-1

USN-5317-1: Linux kernel vulnerabilities

Publication date

9 March 2022

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Nick Gregory discovered that the Linux kernel incorrectly handled network
offload functionality. A local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2022-25636)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by ARM to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-23960)

Max Kellermann discovered that the Linux kernel incorrectly handled Unix
pipes. A local attacker could potentially use this to modify any file that
could be opened for reading. (CVE-2022-0847)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by...

Nick Gregory discovered that the Linux kernel incorrectly handled network
offload functionality. A local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2022-25636)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by ARM to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-23960)

Max Kellermann discovered that the Linux kernel incorrectly handled Unix
pipes. A local attacker could potentially use this to modify any file that
could be opened for reading. (CVE-2022-0847)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by Intel to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-0001,
CVE-2022-0002)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
21.10 impish linux-image-5.13.0-35-generic –  5.13.0-35.40
linux-image-virtual –  5.13.0.35.44
linux-image-5.13.0-1017-aws –  5.13.0-1017.19
linux-image-generic-64k –  5.13.0.35.44
linux-image-generic –  5.13.0.35.44
linux-image-5.13.0-1020-raspi-nolpae –  5.13.0-1020.22
linux-image-aws –  5.13.0.1017.18
linux-image-5.13.0-1020-raspi –  5.13.0-1020.22
linux-image-5.13.0-1016-kvm –  5.13.0-1016.17
linux-image-5.13.0-1017-azure –  5.13.0-1017.19
linux-image-azure –  5.13.0.1017.17
linux-image-raspi-nolpae –  5.13.0.1020.25
linux-image-oem-20.04 –  5.13.0.35.44
linux-image-gke –  5.13.0.1019.17
linux-image-5.13.0-35-generic-lpae –  5.13.0-35.40
linux-image-5.13.0-1019-gcp –  5.13.0-1019.23
linux-image-5.13.0-35-lowlatency –  5.13.0-35.40
linux-image-gcp –  5.13.0.1019.17
linux-image-5.13.0-1021-oracle –  5.13.0-1021.26
linux-image-oracle –  5.13.0.1021.21
linux-image-raspi –  5.13.0.1020.25
linux-image-5.13.0-35-generic-64k –  5.13.0-35.40
linux-image-kvm –  5.13.0.1016.16
linux-image-generic-lpae –  5.13.0.35.44
linux-image-lowlatency –  5.13.0.35.44
20.04 focal linux-image-5.13.0-35-generic –  5.13.0-35.40~20.04.1
linux-image-5.13.0-1017-aws –  5.13.0-1017.19~20.04.1
linux-image-virtual-hwe-20.04 –  5.13.0.35.40~20.04.20
linux-image-aws –  5.13.0.1017.19~20.04.10
linux-image-lowlatency-hwe-20.04 –  5.13.0.35.40~20.04.20
linux-image-5.14.0-1027-oem –  5.14.0-1027.30
linux-image-5.13.0-1017-azure –  5.13.0-1017.19~20.04.1
linux-image-oem-20.04c –  5.14.0.1027.24
linux-image-oem-20.04b –  5.14.0.1027.24
linux-image-oem-20.04d –  5.14.0.1027.24
linux-image-generic-hwe-20.04 –  5.13.0.35.40~20.04.20
linux-image-azure –  5.13.0.1017.19~20.04.7
linux-image-oem-20.04 –  5.14.0.1027.24
linux-image-5.13.0-1019-gcp –  5.13.0-1019.23~20.04.1
linux-image-5.13.0-35-lowlatency –  5.13.0-35.40~20.04.1
linux-image-gcp –  5.13.0.1019.23~20.04.1
linux-image-5.13.0-1021-oracle –  5.13.0-1021.26~20.04.1
linux-image-oracle –  5.13.0.1021.26~20.04.1
linux-image-generic-lpae-hwe-20.04 –  5.13.0.35.40~20.04.20
linux-image-5.13.0-35-generic-64k –  5.13.0-35.40~20.04.1
linux-image-generic-64k-hwe-20.04 –  5.13.0.35.40~20.04.20
linux-image-5.13.0-35-generic-lpae –  5.13.0-35.40~20.04.1

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References

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