Ubuntu alert USN-7671-2 (linux-azure, linux-azure-5.4, linux-azure-fips, linux-raspi, linux-raspi-5.4)

From:
             
 
Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-7671-2] Linux kernel vulnerabilities
Date:
             
 
Tue, 29 Jul 2025 14:30:50 -0300
Message-ID:
             
 
<56a8866d-8775-42ae-9498-ccd969dfa8c2@canonical.com>
==========================================================================
Ubuntu Security Notice USN-7671-2
July 29, 2025

linux-azure, linux-azure-5.4, linux-azure-fips, linux-raspi,
linux-raspi-5.4 vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems
- linux-raspi-5.4: Linux kernel for Raspberry Pi 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:
   - ACPI drivers;
   - GPU drivers;
   - SMB network file system;
   - Memory management;
   - Netfilter;
   - Network traffic control;
(CVE-2024-53051, CVE-2024-46787, CVE-2024-50047, CVE-2024-56662,
CVE-2025-37890, CVE-2025-38001, CVE-2025-37997, CVE-2025-37932,
CVE-2025-37798, CVE-2025-38177, CVE-2025-38000)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1131-raspi    5.4.0-1131.144
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1153-azure    5.4.0-1153.160
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1154-azure-fips  5.4.0-1154.161+fips1
                                   Available with Ubuntu Pro
   linux-image-azure-5.4           5.4.0.1153.147
                                   Available with Ubuntu Pro
   linux-image-azure-fips          5.4.0.1154.91
                                   Available with Ubuntu Pro
   linux-image-azure-fips-5.4      5.4.0.1154.91
                                   Available with Ubuntu Pro
   linux-image-azure-lts-20.04     5.4.0.1153.147
                                   Available with Ubuntu Pro
   linux-image-raspi               5.4.0.1131.162
                                   Available with Ubuntu Pro
   linux-image-raspi-5.4           5.4.0.1131.162
                                   Available with Ubuntu Pro
   linux-image-raspi2              5.4.0.1131.162
                                   Available with Ubuntu Pro

Ubuntu 18.04 LTS
   linux-image-5.4.0-1131-raspi    5.4.0-1131.144~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1153-azure    5.4.0-1153.160~18.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               5.4.0.1153.160~18.04.1
                                   Available with Ubuntu Pro
   linux-image-azure-5.4           5.4.0.1153.160~18.04.1
                                   Available with Ubuntu Pro
   linux-image-raspi-5.4           5.4.0.1131.144~18.04.1
                                   Available with Ubuntu Pro
   linux-image-raspi-hwe-18.04     5.4.0.1131.144~18.04.1
                                   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-7671-2
   https://ubuntu.com/security/notices/USN-7671-1
   CVE-2024-46787, CVE-2024-50047, CVE-2024-53051, CVE-2024-56662,
   CVE-2025-37798, CVE-2025-37890, CVE-2025-37932, CVE-2025-37997,
   CVE-2025-38000, CVE-2025-38001, CVE-2025-38177



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