1. Ubuntu Security Notices
  2. USN-5339-1

USN-5339-1: Linux kernel vulnerabilities

Publication date

22 March 2022

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)

It was discovered that an out-of-bounds (OOB) memory access flaw existed in
the f2fs module of the Linux kernel. A local attacker could use this issue
to cause a denial of service (system crash). (CVE-2021-3506)

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver
in the Linux kernel did not properly handle some error conditions. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2021-43976)

It was discovered that the ARM Trusted Execution Environment (TEE)
subsystem in the Linux kernel contained a race...

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)

It was discovered that an out-of-bounds (OOB) memory access flaw existed in
the f2fs module of the Linux kernel. A local attacker could use this issue
to cause a denial of service (system crash). (CVE-2021-3506)

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver
in the Linux kernel did not properly handle some error conditions. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2021-43976)

It was discovered that the ARM Trusted Execution Environment (TEE)
subsystem in the Linux kernel contained a race condition leading to a use-
after-free vulnerability. A local attacker could use this to cause a denial
of service or possibly execute arbitrary code. (CVE-2021-44733)

It was discovered that the Phone Network protocol (PhoNet) implementation
in the Linux kernel did not properly perform reference counting in some
error conditions. A local attacker could possibly use this to cause a
denial of service (memory exhaustion). (CVE-2021-45095)

Samuel Page discovered that the Transparent Inter-Process Communication
(TIPC) protocol implementation in the Linux kernel contained a stack-based
buffer overflow. A remote attacker could use this to cause a denial of
service (system crash) for systems that have a TIPC bearer configured.
(CVE-2022-0435)

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-4.15.0-1110-kvm –  4.15.0-1110.113
linux-image-aws-lts-18.04 –  4.15.0.1124.127
linux-image-generic –  4.15.0.173.162
linux-image-4.15.0-1123-snapdragon –  4.15.0-1123.132
linux-image-4.15.0-1119-gcp –  4.15.0-1119.133
linux-image-oracle-lts-18.04 –  4.15.0.1090.100
linux-image-4.15.0-1134-azure –  4.15.0-1134.147
linux-image-4.15.0-1090-oracle –  4.15.0-1090.99
linux-image-virtual –  4.15.0.173.162
linux-image-4.15.0-173-generic –  4.15.0-173.182
linux-image-snapdragon –  4.15.0.1123.126
linux-image-dell300x –  4.15.0.1038.40
linux-image-4.15.0-1124-aws –  4.15.0-1124.133
linux-image-4.15.0-1106-raspi2 –  4.15.0-1106.113
linux-image-4.15.0-1038-dell300x –  4.15.0-1038.43
linux-image-raspi2 –  4.15.0.1106.104
linux-image-azure-lts-18.04 –  4.15.0.1134.107
linux-image-4.15.0-173-lowlatency –  4.15.0-173.182
linux-image-gcp-lts-18.04 –  4.15.0.1119.138
linux-image-kvm –  4.15.0.1110.106
linux-image-4.15.0-173-generic-lpae –  4.15.0-173.182
linux-image-generic-lpae –  4.15.0.173.162
linux-image-lowlatency –  4.15.0.173.162
16.04 xenial linux-image-lowlatency-hwe-16.04 –  4.15.0.173.165  
linux-image-4.15.0-1124-aws-hwe –  4.15.0-1124.133~16.04.1  
linux-image-4.15.0-173-generic –  4.15.0-173.182~16.04.1  
linux-image-oem –  4.15.0.173.165  
linux-image-4.15.0-1119-gcp –  4.15.0-1119.133~16.04.1  
linux-image-4.15.0-1134-azure –  4.15.0-1134.147~16.04.1  
linux-image-4.15.0-1090-oracle –  4.15.0-1090.99~16.04.1  
linux-image-azure –  4.15.0.1134.125  
linux-image-gke –  4.15.0.1119.120  
linux-image-gcp –  4.15.0.1119.120  
linux-image-aws-hwe –  4.15.0.1124.114  
linux-image-generic-hwe-16.04 –  4.15.0.173.165  
linux-image-4.15.0-173-lowlatency –  4.15.0-173.182~16.04.1  
linux-image-oracle –  4.15.0.1090.78  
linux-image-virtual-hwe-16.04 –  4.15.0.173.165  
14.04 trusty linux-image-4.15.0-1134-azure –  4.15.0-1134.147~14.04.1  
linux-image-azure –  4.15.0.1134.107  

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References

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