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From: Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
Reply-To: security@ubuntu.com
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <6c271d5f-c9d2-43ea-8ab1-99dd0c4a06d7@canonical.com>
Subject: [USN-7408-2] Linux kernel (FIPS) vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7408-2
April 02, 2025

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

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-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:
   - SMB network file system;
   - Network namespace;
   - Networking core;
(CVE-2024-56658, CVE-2024-35864, CVE-2024-26928)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1117-fips     5.4.0-1117.127
                                   Available with Ubuntu Pro
   linux-image-fips                5.4.0.1117.114
                                   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-7408-2
   https://ubuntu.com/security/notices/USN-7408-1
   CVE-2024-26928, CVE-2024-35864, CVE-2024-56658


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