1. Ubuntu Security Notices
  2. USN-5358-2

USN-5358-2: Linux kernel vulnerabilities

Publication date

31 March 2022

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux-aws-5.13 - Linux kernel for Amazon Web Services (AWS) systems
  • linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-azure-5.4 - Linux kernel for Microsoft Azure cloud systems
  • linux-azure-fde - Linux kernel for Microsoft Azure cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gcp-5.13 - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gcp-5.4 - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gke - Linux kernel for Google Container Engine (GKE) systems
  • linux-gke-5.4 - Linux kernel for Google Container Engine (GKE) systems
  • linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
  • linux-gkeop-5.4 - Linux kernel for Google Container Engine (GKE) systems
  • linux-ibm - Linux kernel for IBM cloud systems
  • linux-ibm-5.4 - Linux kernel for IBM cloud systems
  • linux-raspi - Linux kernel for Raspberry Pi systems
  • linux-raspi-5.4 - Linux kernel for Raspberry Pi systems

Details

It was discovered that the network traffic control implementation 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-2022-1055)

It was discovered that the IPsec implementation in the Linux kernel did not
properly allocate enough memory when performing ESP transformations,
leading to a heap-based buffer overflow. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-27666)

It was discovered that the network traffic control implementation 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-2022-1055)

It was discovered that the IPsec implementation in the Linux kernel did not
properly allocate enough memory when performing ESP transformations,
leading to a heap-based buffer overflow. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-27666)

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-5.13.0-1024-raspi-nolpae –  5.13.0-1024.26
linux-image-azure –  5.13.0.1021.21
linux-image-raspi-nolpae –  5.13.0.1024.29
linux-image-5.13.0-1021-azure –  5.13.0-1021.24
linux-image-raspi –  5.13.0.1024.29
linux-image-5.13.0-1024-raspi –  5.13.0-1024.26
20.04 focal linux-image-5.13.0-1021-aws –  5.13.0-1021.23~20.04.2
linux-image-5.13.0-1023-gcp –  5.13.0-1023.28~20.04.1
linux-image-5.4.0-1019-ibm –  5.4.0-1019.21
linux-image-gkeop –  5.4.0.1038.41
linux-image-5.4.0-1069-gcp –  5.4.0-1069.73
linux-image-aws –  5.13.0.1021.23~20.04.14
linux-image-ibm –  5.4.0.1019.19
linux-image-ibm-lts-20.04 –  5.4.0.1019.19
linux-image-azure-fde –  5.4.0.1074.77+cvm1.20
linux-image-5.4.0-1067-gke –  5.4.0-1067.70
linux-image-gcp-lts-20.04 –  5.4.0.1069.78
linux-image-raspi2 –  5.4.0.1058.92
linux-image-gcp –  5.13.0.1023.28~20.04.1
linux-image-gke –  5.4.0.1067.77
linux-image-raspi –  5.4.0.1058.92
linux-image-5.4.0-1058-raspi –  5.4.0-1058.65
linux-image-5.4.0-1038-gkeop –  5.4.0-1038.39
linux-image-5.4.0-1074-azure-fde –  5.4.0-1074.77+cvm1.1
18.04 bionic linux-image-5.4.0-1019-ibm –  5.4.0-1019.21~18.04.1
linux-image-5.4.0-1069-gcp –  5.4.0-1069.73~18.04.1
linux-image-aws –  5.4.0.1071.53
linux-image-raspi-hwe-18.04 –  5.4.0.1058.59
linux-image-ibm –  5.4.0.1019.36
linux-image-5.4.0-1071-aws –  5.4.0-1071.76~18.04.1
linux-image-gkeop-5.4 –  5.4.0.1038.39~18.04.38
linux-image-azure –  5.4.0.1074.53
linux-image-5.4.0-1067-gke –  5.4.0-1067.70~18.04.1
linux-image-gcp –  5.4.0.1069.54
linux-image-5.4.0-1058-raspi –  5.4.0-1058.65~18.04.1
linux-image-gke-5.4 –  5.4.0.1067.70~18.04.31
linux-image-5.4.0-1038-gkeop –  5.4.0-1038.39~18.04.1
linux-image-5.4.0-1074-azure –  5.4.0-1074.77~18.04.1

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References

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