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Ubuntu 24.04 LTS: USN-7120-3 critical: kernel low latency security fix

ubuntu
Calendar Grey November 21, 2024
Dist Ubuntu Esm H88
A multitude of vulnerabilities addressed in Ubuntu kernel real-time; patches provided for system stability and optimization.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-lowlatency: Linux low latency kernel

- linux-lowlatency-hwe-6.8: Linux low latency kernel

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:

- File systems infrastructure;

- Network traffic control;

(CVE-2024-46800, CVE-2024-43882)

Topics%20covered

Topics Covered

security advisory kernel update security fix ubuntu system reboot linux low latency

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.8.0-49-lowlatency  6.8.0-49.49.1
   linux-image-6.8.0-49-lowlatency-64k  6.8.0-49.49.1
   linux-image-lowlatency          6.8.0-49.49.1
   linux-image-lowlatency-64k      6.8.0-49.49.1
   linux-image-lowlatency-64k-hwe-24.04  6.8.0-49.49.1
   linux-image-lowlatency-hwe-24.04  6.8.0-49.49.1

Ubuntu 22.04 LTS
   linux-image-6.8.0-49-lowlatency  6.8.0-49.49.1~22.04.1
   linux-image-6.8.0-49-lowlatency-64k  6.8.0-49.49.1~22.04.1
   linux-image-lowlatency-64k-hwe-22.04  6.8.0-49.49.1~22.04.1
   linux-image-lowlatency-hwe-22.04  6.8.0-49.49.1~22.04.1

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-7120-3

https://ubuntu.com/security/notices/USN-7120-2

https://ubuntu.com/security/notices/USN-7120-1

CVE-2024-43882, CVE-2024-46800

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7120-3

Topics%20covered

Topics Covered

security advisory kernel update security fix ubuntu system reboot linux low latency

Package Information

https://launchpad.net/ubuntu/+source/linux-lowlatency/6.8.0-49.49.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-49.49.1~22.04.1

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