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Ubuntu 24.04 LTS USN-6875-1: Critical Azure Kernel Threat

ubuntu
Calendar Grey July 4, 2024
Dist Ubuntu Esm H88
Critical vulnerabilities patched in Ubuntu 24.04 LTS kernel. Upgrade promptly to reduce threats and improve performance.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure: Linux kernel for Microsoft Azure Cloud 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)

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;

(CVE-2024-35901, CVE-2024-26924)

Topics%20covered

Topics Covered

security advisory denial of service kernel update Ubuntu software issue linux-azure

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.8.0-1009-azure    6.8.0-1009.9
   linux-image-6.8.0-1009-azure-fde  6.8.0-1009.9
   linux-image-azure               6.8.0-1009.9
   linux-image-azure-fde           6.8.0-1009.9

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-6875-1

CVE-2024-21823, CVE-2024-26924, CVE-2024-35901

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6875-1

Topics%20covered

Topics Covered

security advisory denial of service kernel update Ubuntu software issue linux-azure

Package Information

https://launchpad.net/ubuntu/+source/linux-azure/6.8.0-1009.9

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