[USN-6864-3] Linux kernel (GKE) vulnerabilities

[Rodrigo Figueiredo Zaiden]

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Ubuntu Security Notice USN-6864-3
July 11, 2024

linux-gke vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-gke: Linux kernel for Google Container Engine (GKE) systems

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)

A security issue was discovered in the Linux kernel.
An attacker could possibly use it to compromise the system.
This update corrects flaws in the following subsystem:
   - Netfilter;
(CVE-2024-26924)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
   linux-image-6.8.0-1005-gke      6.8.0-1005.8
   linux-image-gke                 6.8.0-1005.8

After a standard system update you need to reboot your computer to make
all the necessary changes.

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.

References:
   https://ubuntu.com/security/notices/USN-6864-3
   https://ubuntu.com/security/notices/USN-6864-1
   CVE-2024-21823, CVE-2024-26924

Package Information:
   https://launchpad.net/ubuntu/+source/linux-gke/6.8.0-1005.8

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