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Ubuntu 24.04 LTS: USN-7682-3 Linux Kernel Critical Network Vulnerability

ubuntu
Calendar Grey July 31, 2025
Dist Ubuntu Esm H88
Ubuntu Security Advisory USN-7682-3 highlights essential patches for vulnerabilities in the real-time Linux kernel impacting version 24.04 LTS.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-realtime: Linux kernel for Real-time 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:

- Network traffic control;

(CVE-2025-37797, CVE-2025-38083)

Topics%20covered

Topics Covered

security advisory critical Ubuntu network control attack surface linux-realtime

Update Instructions

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

Ubuntu 24.04 LTS
  linux-image-6.8.1-1026-realtime  6.8.1-1026.27
                                  Available with Ubuntu Pro
  linux-image-realtime            6.8.1-1026.27
                                  Available with Ubuntu Pro
  linux-image-realtime-6.8.1      6.8.1-1026.27
                                  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-7682-3

https://ubuntu.com/security/notices/USN-7682-2

https://ubuntu.com/security/notices/USN-7682-1

CVE-2025-37797, CVE-2025-38083

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7682-3

Topics%20covered

Topics Covered

security advisory critical Ubuntu network control attack surface linux-realtime

Package Information

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