Ubuntu alert USN-8143-2 (linux-fips)

From:
             
 
Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-8143-2] Linux kernel (FIPS) vulnerabilities
Date:
             
 
Thu, 02 Apr 2026 18:00:19 -0300
Message-ID:
             
 
<40212aef-8e98-4e10-ae71-635e3a873bd9@canonical.com>
==========================================================================
Ubuntu Security Notice USN-8143-2
April 02, 2026

linux-fips vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-fips: Linux kernel 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:
   - Cryptographic API;
   - GPU drivers;
   - BTRFS file system;
   - GFS2 file system;
   - UDF file system;
   - NFC subsystem;
   - Network traffic control;
(CVE-2021-47142, CVE-2021-47145, CVE-2021-47254, CVE-2024-46777,
CVE-2025-21735, CVE-2026-23060, CVE-2026-23074)

Update instructions:

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

Ubuntu 16.04 LTS
   linux-image-4.4.0-1123-fips     4.4.0-1123.130
                                   Available with Ubuntu Pro
   linux-image-fips                4.4.0.1123.124
                                   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-8143-2
   https://ubuntu.com/security/notices/USN-8143-1
   CVE-2021-47142, CVE-2021-47145, CVE-2021-47254, CVE-2024-46777,
   CVE-2025-21735, CVE-2026-23060, CVE-2026-23074

Package Information:
   https://launchpad.net/ubuntu/+source/linux-fips/4.4.0-112...



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