[USN-7495-3] Linux kernel (Azure) vulnerabilities

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Ubuntu Security Notice USN-7495-3
May 07, 2025

linux-azure vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

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:
- Network drivers;
- Ceph distributed file system;
- Netfilter;
(CVE-2023-52664, CVE-2024-26689, CVE-2023-52927)

Update instructions:

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

Ubuntu 20.04 LTS
linux-image-5.4.0-1150-azure 5.4.0-1150.157
linux-image-azure-lts-20.04 5.4.0.1150.144

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-7495-3
https://ubuntu.com/security/notices/USN-7495-2
https://ubuntu.com/security/notices/USN-7495-1
CVE-2023-52664, CVE-2023-52927, CVE-2024-26689

Package Information:
https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1150.157