========================================================================== Ubuntu Security Notice USN-7795-3 October 08, 2025
linux-aws-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-aws-fips: Linux kernel for Amazon Web Services (AWS) 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:
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- Network traffic control;
- VMware vSockets driver;
(CVE-2025-38618, CVE-2025-21796, CVE-2025-37785, CVE-2025-38477,
CVE-2025-38617)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
linux-image-5.4.0-1151-aws-fips 5.4.0-1151.161+fips1
Available with Ubuntu Pro
linux-image-aws-fips 5.4.0.1151.98
Available with Ubuntu Pro
linux-image-aws-fips-5.4 5.4.0.1151.98
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-7795-3
https://ubuntu.com/security/notices/USN-7795-2
https://ubuntu.com/security/notices/USN-7795-1
CVE-2025-21796, CVE-2025-37785, CVE-2025-38477, CVE-2025-38617,
CVE-2025-38618
Package Information:
https://launchpad.net/ubuntu/+source/linux-aws-fips/5.4.0-1151.161+fips1
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