1. Ubuntu Security Notices
  2. USN-7344-2

USN-7344-2: Linux kernel vulnerabilities

Publication date

13 March 2025

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)

Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)

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:

  • PowerPC architecture;
  • GPIO subsystem;
  • GPU drivers;
  • Media drivers;
  • Network...

Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)

Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)

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:

  • PowerPC architecture;
  • GPIO subsystem;
  • GPU drivers;
  • Media drivers;
  • Network drivers;
  • SCSI subsystem;
  • Direct Digital Synthesis drivers;
  • TTY drivers;
  • 9P distributed file system;
  • JFS file system;
  • NILFS2 file system;
  • File systems infrastructure;
  • BPF subsystem;
  • Netfilter;
  • Memory management;
  • Amateur Radio drivers;
  • B.A.T.M.A.N. meshing protocol;
  • Bluetooth subsystem;
  • Ethernet bridge;
  • Networking core;
  • IPv4 networking;
  • IPv6 networking;
  • Open vSwitch;
  • Network traffic control;
  • TIPC protocol;
  • Wireless networking

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-4.15.0-1186-azure –  4.15.0-1186.201  
linux-image-azure-lts-18.04 –  4.15.0.1186.154  
16.04 xenial linux-image-4.15.0-1186-azure –  4.15.0-1186.201~16.04.1  
linux-image-azure –  4.15.0.1186.201~16.04.1  
14.04 trusty linux-image-4.15.0-1186-azure –  4.15.0-1186.201~14.04.1  
linux-image-azure –  4.15.0.1186.201~14.04.1  

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References

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