[USN-6743-3] Linux kernel (Azure) vulnerabilities

[Rodrigo Figueiredo Zaiden]

==========================================================================
Ubuntu Security Notice USN-6743-3
April 24, 2024

linux-azure-6.5 vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure-6.5: Linux kernel for Microsoft Azure cloud systems

Details:

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:
   - JFS file system;
   - BPF subsystem;
   - Netfilter;
(CVE-2023-52600, CVE-2024-26589, CVE-2024-26591, CVE-2024-26581,
CVE-2023-52603)

Update instructions:

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

Ubuntu 22.04 LTS:
   linux-image-6.5.0-1019-azure    6.5.0-1019.20~22.04.1
   linux-image-6.5.0-1019-azure-fde  6.5.0-1019.20~22.04.1
   linux-image-azure               6.5.0.1019.20~22.04.1
   linux-image-azure-fde           6.5.0.1019.20~22.04.1

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-6743-3
   https://ubuntu.com/security/notices/USN-6743-1
   CVE-2023-52600, CVE-2023-52603, CVE-2024-26581, CVE-2024-26589,
   CVE-2024-26591

Package Information:
   https://launchpad.net/ubuntu/+source/linux-azure-6.5/6.5.0-1019.20~22.04.1

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