1. Ubuntu Security Notices
  2. USN-5515-1

USN-5515-1: Linux kernel vulnerabilities

Publication date

13 July 2022

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Eric Biederman discovered that the cgroup process migration implementation
in the Linux kernel did not perform permission checks correctly in some
situations. A local attacker could possibly use this to gain administrative
privileges. (CVE-2021-4197)

Jann Horn discovered that the FUSE file system in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-1011)

Duoming Zhou discovered that the 6pack protocol implementation in the Linux
kernel did not handle detach events properly in some situations, leading to
a use-after-free vulnerability. A local attacker could use this to cause a
denial of service (system crash). (CVE-2022-1198)

Duoming Zhou discovered that the AX.25 amateur radio...

Eric Biederman discovered that the cgroup process migration implementation
in the Linux kernel did not perform permission checks correctly in some
situations. A local attacker could possibly use this to gain administrative
privileges. (CVE-2021-4197)

Jann Horn discovered that the FUSE file system in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-1011)

Duoming Zhou discovered that the 6pack protocol implementation in the Linux
kernel did not handle detach events properly in some situations, leading to
a use-after-free vulnerability. A local attacker could use this to cause a
denial of service (system crash). (CVE-2022-1198)

Duoming Zhou discovered that the AX.25 amateur radio protocol
implementation in the Linux kernel did not handle detach events properly in
some situations. A local attacker could possibly use this to cause a denial
of service (system crash) or execute arbitrary code. (CVE-2022-1199)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol
implementation in the Linux kernel during device detach operations. A local
attacker could possibly use this to cause a denial of service (system
crash). (CVE-2022-1204)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol
implementation in the Linux kernel, leading to use-after-free
vulnerabilities. A local attacker could possibly use this to cause a denial
of service (system crash). (CVE-2022-1205)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did
not properly initialize kernel memory in some situations. A local attacker
could use this to expose sensitive information (kernel memory).
(CVE-2022-1353)

It was discovered that the implementation of X.25 network protocols in the
Linux kernel did not terminate link layer sessions properly. A local
attacker could possibly use this to cause a denial of service (system
crash). (CVE-2022-1516)

Zheyu Ma discovered that the Silicon Motion SM712 framebuffer driver in the
Linux kernel did not properly handle very small reads. A local attacker
could use this to cause a denial of service (system crash). (CVE-2022-2380)

It was discovered that the Microchip CAN BUS Analyzer interface
implementation in the Linux kernel did not properly handle certain error
conditions, leading to a double-free. A local attacker could possibly use
this to cause a denial of service (system crash). (CVE-2022-28389)

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
18.04 bionic linux-image-4.15.0-1123-kvm –  4.15.0-1123.128
linux-image-4.15.0-189-generic –  4.15.0-189.200
linux-image-virtual –  4.15.0.189.174
linux-image-4.15.0-1049-dell300x –  4.15.0-1049.54
linux-image-aws-lts-18.04 –  4.15.0.1137.137
linux-image-generic –  4.15.0.189.174
linux-image-4.15.0-1137-aws –  4.15.0-1137.148
linux-image-4.15.0-1102-oracle –  4.15.0-1102.113
linux-image-4.15.0-189-generic-lpae –  4.15.0-189.200
linux-image-4.15.0-189-lowlatency –  4.15.0-189.200
linux-image-oracle-lts-18.04 –  4.15.0.1102.109
linux-image-4.15.0-1133-snapdragon –  4.15.0-1133.143
linux-image-snapdragon –  4.15.0.1133.134
linux-image-dell300x –  4.15.0.1049.49
linux-image-4.15.0-1131-gcp –  4.15.0-1131.147
linux-image-raspi2 –  4.15.0.1115.112
linux-image-azure-lts-18.04 –  4.15.0.1146.116
linux-image-4.15.0-1115-raspi2 –  4.15.0-1115.123
linux-image-gcp-lts-18.04 –  4.15.0.1131.147
linux-image-kvm –  4.15.0.1123.116
linux-image-generic-lpae –  4.15.0.189.174
linux-image-lowlatency –  4.15.0.189.174
linux-image-4.15.0-1146-azure –  4.15.0-1146.161
16.04 xenial linux-image-oem –  4.15.0.189.176  
linux-image-4.15.0-1102-oracle –  4.15.0-1102.113~16.04.1  
linux-image-lowlatency-hwe-16.04 –  4.15.0.189.176  
linux-image-4.15.0-189-lowlatency –  4.15.0-189.200~16.04.1  
linux-image-4.15.0-1137-aws-hwe –  4.15.0-1137.148~16.04.1  
linux-image-aws-hwe –  4.15.0.1137.124  
linux-image-4.15.0-189-generic –  4.15.0-189.200~16.04.1  
linux-image-gke –  4.15.0.1131.127  
linux-image-4.15.0-1131-gcp –  4.15.0-1131.147~16.04.1  
linux-image-gcp –  4.15.0.1131.127  
linux-image-generic-hwe-16.04 –  4.15.0.189.176  
linux-image-oracle –  4.15.0.1102.86  
linux-image-virtual-hwe-16.04 –  4.15.0.189.176  
14.04 trusty linux-image-4.15.0-1146-azure –  4.15.0-1146.161~14.04.1  
linux-image-azure –  4.15.0.1146.115  

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References

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