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Ubuntu 25.10 24.04 LTS Linux Kernel Critical Denial of Service 2025-0011-1

ubuntu
Calendar Grey March 25, 2026
Dist Ubuntu Esm H88
Multiple security issues fixed in Ubuntu Linux kernel updates to enhance system protection and maintain system integrity.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-azure-6.17: Linux kernel for Microsoft Azure cloud 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 L...

Read the Full Advisory

Topics%20covered

Topics Covered

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

Update Instructions

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

Ubuntu 25.10
   linux-image-6.17.0-1010-azure   6.17.0-1010.10
   linux-image-azure               6.17.0-1010.10
   linux-image-azure-6.17          6.17.0-1010.10

Ubuntu 24.04 LTS
   linux-image-6.17.0-1010-azure   6.17.0-1010.10~24.04.1
   linux-image-azure               6.17.0-1010.10~24.04.1
   linux-image-azure-6.17          6.17.0-1010.10~24.04.1

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-8094-4

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-8094-4

Topics%20covered

Topics Covered

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

Package Information

https://launchpad.net/ubuntu/+source/linux-azure/6.17.0-1010.10
https://launchpad.net/ubuntu/+source/linux-azure-6.17/6.17.0-1010.10~24.04.1

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