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Ubuntu 20.04 LTS USN-7408-3 Critical: Kernel Update for Azure and GCP

ubuntu
Calendar Grey April 7, 2025
Dist Ubuntu Esm H88
Address various security vulnerabilities within the Ubuntu kernel affecting FIPS-compliant Azure and GCP environments. Immediate updates are advised.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

- linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with

FIPS

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:

- SMB network file system;

- Network namespace;

- Networking core;

(CVE-2024-56658, CVE-2024-35864, CVE-2024-26928)

Topics%20covered

Topics Covered

security advisory system update networking ubuntu cloud security linux kernel

Update Instructions

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1146-gcp-fips  5.4.0-1146.155+fips1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1148-azure-fips  5.4.0-1148.156+fips1
                                   Available with Ubuntu Pro
   linux-image-azure-fips          5.4.0.1148.86
                                   Available with Ubuntu Pro
   linux-image-gcp-fips            5.4.0.1146.88
                                   Available with Ubuntu Pro

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-7408-3

https://ubuntu.com/security/notices/USN-7408-2

https://ubuntu.com/security/notices/USN-7408-1

CVE-2024-26928, CVE-2024-35864, CVE-2024-56658

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7408-3

Topics%20covered

Topics Covered

security advisory system update networking ubuntu cloud security linux kernel

Package Information

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