Alerts This Week
Warning Icon 1 967
Alerts This Week
Warning Icon 1 967

Ubuntu 24.04 LTS Linux Kernel Critical Exploitation Issues USN-8094-3

ubuntu
Calendar Grey March 23, 2026
Dist Ubuntu Esm H88
Multiple critical issues in Ubuntu 24.04 LTS Linux kernel resolved. Important updates required for system security and stability.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-realtime-6.17: Linux kernel for Real-time systems

Details:

Qualys discovered that several vulnerabilities existed in the AppArmor

Linux kernel Security Module (LSM). An unprivileged local attacker could

use these issues to load, replace, and remove arbitrary AppArmor profiles

causing denial of service, exposure of sensitive information (kernel

memory), local privilege escalation, or possibly escape a container.

(LP: #2143853)

It was discovered that some AMD Zen 5 processors supporting RDSEED

instruction did not properly handle entropy, potentially resulting in the

consumption of insufficiently random values. A local attacker could

possibly use this issue to influence the values returned by the RDSEED

instruction causing loss of confidentiality and integrity. (CVE-2025-62626)

Several security issues were discovered in the Linux kernel.

An attacker could possibly use these to compromise the sys...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical local privilege escalation Ubuntu kernel issue

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.17.0-1008-realtime  6.17.0-1008.9~24.04.1
                                   Available with Ubuntu Pro
   linux-image-realtime-6.17       6.17.0-1008.9~24.04.1
                                   Available with Ubuntu Pro
   linux-image-realtime-hwe-24.04  6.17.0-1008.9~24.04.1
                                   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-8094-3

https://ubuntu.com/security/notices/USN-8094-2

https://ubuntu.com/security/notices/USN-8094-1

https://launchpad.net/bugs/2143853

CVE-2025-40246, CVE-2025-40247, CVE-2025-40248, CVE-2025-40249,

CVE-2025-40250, CVE-2025-40251, CVE-2025-40252, CVE-2025-40253,

CVE-2025-40254, CVE-2025-40255, CVE-2025-40257, CVE-2025-40258,

CVE-2025-40259, CVE-2025-40260, CVE-2025-40261, CVE-2025-40262,

CVE-2025-40263, CVE-2025-40264, CVE-2025-40265, CVE-2025-40266,

CVE-2025-40290, CVE-2025-40345, CVE-2025-62626, CVE-2025-68212,

CVE-2025-68213, CVE-2025-68214, CVE-2025-68215, CVE-2025-68217,

CVE-2025-68218, CVE-2025-68219, CVE-2025-68220, CVE-2025-68221,

CVE-2025-68222, CVE-2025-68223, CVE-2025-68225, CVE-2025-68227,

CVE-2025-68228, CVE-2025-68229, CVE-2025-68230, CVE-2025-68231,

CVE-2025-68232, CVE-2025-68233, CVE-2025-68234, CVE-2025-68235,

CVE-2025-68236, CVE-2025-68237, CVE-2025-68238, CVE-2025-68254,

CVE-2025-68255, CVE-2025-68256, CVE-2025-68257, CVE-2025-68258,

CVE-2025-68259, CVE-2025-68261, CVE-2025-68262, CVE-2025-68263,

CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68281,

CVE-2025-68282, CVE-2025-68283, CVE-2025-68284, CVE-2025-68285,

CVE-2025-68286, CVE-2025-68287, CVE-2025-68288, CVE-2025-68289,

CVE-2025-68290, CVE-2025-68292, CVE-2025-68293, CVE-2025-68294,

CVE-2025-68295, CVE-2025-68296, CVE-2025-68297, CVE-2025-68298,

CVE-2025-68299, CVE-2025-68300, CVE-2025-68301, CVE-2025-68302,

CVE-2025-68303, CVE-2025-68304, CVE-2025-68305, CVE-2025-68306,

CVE-2025-68307, CVE-2025-68308, CVE-2025-68323, CVE-2025-68324,

CVE-2025-68325, CVE-2025-68326, CVE-2025-68327, CVE-2025-68328,

CVE-2025-68329, CVE-2025-68330, CVE-2025-68331, CVE-2025-68332,

CVE-2025-68333, CVE-2025-68334, CVE-2025-68335, CVE-2025-68336,

CVE-2025-68337, CVE-2025-68338, CVE-2025-68339, CVE-2025-68340,

CVE-2025-68341, CVE-2025-68342, CVE-2025-68343, CVE-2025-68344,

CVE-2025-68345, CVE-2025-68346, CVE-2025-68347, CVE-2025-68348,

CVE-2025-68349, CVE-2025-68352, CVE-2025-68354, CVE-2025-68356,

CVE-2025-68358, CVE-2025-68359, CVE-2025-68360, CVE-2025-68361,

CVE-2025-68362, CVE-2025-68363, CVE-2025-68364, CVE-2025-68366,

CVE-2025-68367, CVE-2025-68369, CVE-2025-68370, CVE-2025-68371,

CVE-2025-68372, CVE-2025-68373, CVE-2025-68374, CVE-2025-68375,

CVE-2025-68376, CVE-2025-68378, CVE-2025-68379, CVE-2025-68380,

CVE-2025-68724, CVE-2025-68726, CVE-2025-68727, CVE-2025-68728,

CVE-2025-68729, CVE-2025-68730, CVE-2025-68732, CVE-2025-68733,

CVE-2025-68735, CVE-2025-68738, CVE-2025-68739, CVE-2025-68740,

CVE-2025-68741, CVE-2025-68742, CVE-2025-68743, CVE-2025-68744,

CVE-2025-68746, CVE-2025-68747, CVE-2025-68748, CVE-2025-68749,

CVE-2025-68751, CVE-2025-68752, CVE-2025-68753, CVE-2025-68754,

CVE-2025-68755, CVE-2025-68756, CVE-2025-68757, CVE-2025-68758,

CVE-2025-68759, CVE-2025-68760, CVE-2025-68762, CVE-2025-68763,

CVE-2025-68764, CVE-2025-68765, CVE-2025-68766, CVE-2025-71128

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8094-3

Topics%20covered

Topics Covered

security advisory denial of service critical local privilege escalation Ubuntu kernel issue

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here