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Ubuntu 20.04 LTS USN-7461-2: Serious Kernel Issues Fixed

ubuntu
Calendar Grey April 24, 2025
Dist Ubuntu Esm H88
Security notice for Ubuntu 20.04 LTS highlights essential kernel fixes addressing serious issues today.
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-fips: Linux kernel 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:

- GPU drivers;

- Network drivers;

- File systems infrastructure;

- Ext4 file system;

- Network file system (NFS) server daemon;

- Bluetooth subsystem;

- IPv6 networking;

- Network traffic control;

(CVE-2021-47119, CVE-2024-35958, CVE-2025-21700, CVE-2024-53237,

CVE-2024-46826, CVE-2025-21703, CVE-2024-49974, CVE-2025-21702,

CVE-2024-56651, CVE-2024-26915, CVE-2024-50256)

Topics%20covered

Topics Covered

security advisory update kernel ubuntu fips linux

Update Instructions

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

Ubuntu 20.04 LTS
  linux-image-5.4.0-1118-fips     5.4.0-1118.128
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1147-gcp-fips  5.4.0-1147.156+fips1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1149-azure-fips  5.4.0-1149.157+fips1
                                  Available with Ubuntu Pro
  linux-image-azure-fips          5.4.0.1149.87
                                  Available with Ubuntu Pro
  linux-image-fips                5.4.0.1118.115
                                  Available with Ubuntu Pro
  linux-image-gcp-fips            5.4.0.1147.89
                                  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-7461-2

https://ubuntu.com/security/notices/USN-7461-1

CVE-2021-47119, CVE-2024-26915, CVE-2024-35958, CVE-2024-46826,

CVE-2024-49974, CVE-2024-50256, CVE-2024-53237, CVE-2024-56651,

CVE-2025-21700, CVE-2025-21702, CVE-2025-21703

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7461-2

Topics%20covered

Topics Covered

security advisory update kernel ubuntu fips linux

Package Information

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