1. Ubuntu Security Notices
  2. USN-6874-1

USN-6874-1: Linux kernel (Azure) vulnerabilities

Publication date

4 July 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

It was discovered that the Intel Data Streaming and Intel Analytics
Accelerator drivers in the Linux kernel allowed direct access to the
devices for unprivileged users and virtual machines. A local attacker could
use this to cause a denial of service. (CVE-2024-21823)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:

  • Microsoft Azure Network Adapter (MANA) driver;
  • Netfilter

It was discovered that the Intel Data Streaming and Intel Analytics
Accelerator drivers in the Linux kernel allowed direct access to the
devices for unprivileged users and virtual machines. A local attacker could
use this to cause a denial of service. (CVE-2024-21823)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:

  • Microsoft Azure Network Adapter (MANA) driver;
  • Netfilter

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
23.10 mantic linux-image-6.5.0-1023-azure –  6.5.0-1023.24
linux-image-6.5.0-1023-azure-fde –  6.5.0-1023.24
linux-image-azure –  6.5.0.1023.27
linux-image-azure-fde –  6.5.0.1023.27
22.04 jammy linux-image-6.5.0-1023-azure –  6.5.0-1023.24~22.04.1
linux-image-6.5.0-1023-azure-fde –  6.5.0-1023.24~22.04.1
linux-image-azure –  6.5.0.1023.24~22.04.1
linux-image-azure-fde –  6.5.0.1023.24~22.04.1

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References

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