1. Ubuntu Security Notices
  2. USN-5390-1

USN-5390-1: Linux kernel vulnerabilities

Publication date

26 April 2022

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gke - Linux kernel for Google Container Engine (GKE) systems
  • linux-ibm - Linux kernel for IBM cloud systems
  • linux-kvm - Linux kernel for cloud environments
  • linux-lowlatency - Linux low latency kernel
  • linux-oracle - Linux kernel for Oracle Cloud systems

Details

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not properly validate passed user register indices. A local attacker
could use this to cause a denial of service or possibly execute arbitrary
code. (CVE-2022-1015)

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not initialize memory in some situations. A local attacker could use
this to expose sensitive information (kernel memory). (CVE-2022-1016)

It was discovered that the ST21NFCA NFC driver in the Linux kernel did not
properly validate the size of certain data in EVT_TRANSACTION events. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-26490)

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not properly validate passed user register indices. A local attacker
could use this to cause a denial of service or possibly execute arbitrary
code. (CVE-2022-1015)

David Bouman discovered that the netfilter subsystem in the Linux kernel
did not initialize memory in some situations. A local attacker could use
this to expose sensitive information (kernel memory). (CVE-2022-1016)

It was discovered that the ST21NFCA NFC driver in the Linux kernel did not
properly validate the size of certain data in EVT_TRANSACTION events. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-26490)

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
22.04 jammy linux-image-5.15.0-1003-oracle –  5.15.0-1003.5
linux-image-virtual –  5.15.0.27.30
linux-image-generic-64k –  5.15.0.27.30
linux-image-generic –  5.15.0.27.30
linux-image-5.15.0-27-lowlatency –  5.15.0-27.28
linux-image-aws –  5.15.0.1005.7
linux-image-5.15.0-27-generic-lpae –  5.15.0-27.28
linux-image-gke-5.15 –  5.15.0.1003.7
linux-image-gke –  5.15.0.1003.7
linux-image-ibm –  5.15.0.1003.4
linux-image-5.15.0-27-lowlatency-64k –  5.15.0-27.28
linux-image-5.15.0-1005-kvm –  5.15.0-1005.5
linux-image-5.15.0-27-generic –  5.15.0-27.28
linux-image-oem-20.04 –  5.15.0.27.30
linux-image-5.15.0-1005-azure –  5.15.0-1005.6
linux-image-5.15.0-1005-aws –  5.15.0-1005.7
linux-image-azure –  5.15.0.1005.6
linux-image-5.15.0-1003-gke –  5.15.0-1003.3
linux-image-gcp –  5.15.0.1004.5
linux-image-generic-lpae –  5.15.0.27.30
linux-image-lowlatency-64k –  5.15.0.27.28
linux-image-oracle –  5.15.0.1003.3
linux-image-5.15.0-27-generic-64k –  5.15.0-27.28
linux-image-kvm –  5.15.0.1005.5
linux-image-5.15.0-1004-gcp –  5.15.0-1004.7
linux-image-5.15.0-1003-ibm –  5.15.0-1003.3
linux-image-lowlatency –  5.15.0.27.28

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References

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