1. Ubuntu Security Notices
  2. USN-7428-2

USN-7428-2: Linux kernel (FIPS) vulnerabilities

Publication date

9 April 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

  • linux-aws-fips - Linux kernel for Amazon Web Services (AWS) systems with FIPS
  • 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

Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)

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:

  • HID subsystem;
  • Network drivers;
  • Mellanox network drivers;
  • SCSI subsystem;
  • SuperH / SH-Mobile drivers;
  • File systems infrastructure;
  • Ext4 file system;
  • JFS file system;
  • IP tunnels definitions;
  • Network namespace;
  • BPF subsystem;
  • Networking core;
  • HSR network protocol;
  • IPv4...

Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)

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:

  • HID subsystem;
  • Network drivers;
  • Mellanox network drivers;
  • SCSI subsystem;
  • SuperH / SH-Mobile drivers;
  • File systems infrastructure;
  • Ext4 file system;
  • JFS file system;
  • IP tunnels definitions;
  • Network namespace;
  • BPF subsystem;
  • Networking core;
  • HSR network protocol;
  • IPv4 networking;
  • IPv6 networking;
  • Network traffic control

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
18.04 bionic linux-image-4.15.0-1134-fips –  4.15.0-1134.145  
linux-image-4.15.0-2080-gcp-fips –  4.15.0-2080.86  
linux-image-4.15.0-2096-azure-fips –  4.15.0-2096.102  
linux-image-4.15.0-2117-aws-fips –  4.15.0-2117.123  
linux-image-aws-fips –  4.15.0.2117.111  
linux-image-azure-fips –  4.15.0.2096.92  
linux-image-fips –  4.15.0.1134.131  
linux-image-gcp-fips –  4.15.0.2080.78  

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

id="usn"

Have additional questions?

Talk to a member of the team ›