[USN-7611-2] Linux kernel (Azure) vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7611-2
July 08, 2025

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

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

- Ubuntu 25.04

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure: 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:
- Netfilter;
- Network traffic control;
(CVE-2025-38000, CVE-2025-37890, CVE-2025-38001, CVE-2025-37997,
CVE-2025-37932)

Update instructions:

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

Ubuntu 25.04
linux-image-6.14.0-1008-azure 6.14.0-1008.8
linux-image-6.14.0-1008-azure-fde 6.14.0-1008.8
linux-image-azure 6.14.0-1008.8
linux-image-azure-6.14 6.14.0-1008.8
linux-image-azure-fde 6.14.0-1008.8
linux-image-azure-fde-6.14 6.14.0-1008.8

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-7611-2
https://ubuntu.com/security/notices/USN-7611-1
CVE-2025-37890, CVE-2025-37932, CVE-2025-37997, CVE-2025-38000,
CVE-2025-38001

Package Information:
https://launchpad.net/ubuntu/+source/linux-azure/6.14.0-1008.8