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Ubuntu 24.04 LTS Kernel Faces Severe SMB Issues USN-8059-9 Alert

ubuntu
Calendar Grey March 24, 2026
Dist Ubuntu Esm H88
Critical security update for Ubuntu 24.04 LTS addressing multiple issues in the Linux kernel. Reboot required post-update.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

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:

- SMB network file system;

(CVE-2025-22037, CVE-2025-37899)

Topics%20covered

Topics Covered

security advisory critical Ubuntu kernel SMB Azure

Update Instructions

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

Ubuntu 24.04 LTS
  linux-image-6.8.0-1047-azure-fips  6.8.0-1047.53+fips1
                                  Available with Ubuntu Pro
  linux-image-azure-fips          6.8.0-1047.53+fips1
                                  Available with Ubuntu Pro
  linux-image-azure-fips-6.8      6.8.0-1047.53+fips1
                                  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-8059-9

https://ubuntu.com/security/notices/USN-8059-8

https://ubuntu.com/security/notices/USN-8059-7

https://ubuntu.com/security/notices/USN-8059-6

https://ubuntu.com/security/notices/USN-8059-5

https://ubuntu.com/security/notices/USN-8059-4

https://ubuntu.com/security/notices/USN-8059-3

https://ubuntu.com/security/notices/USN-8059-2

https://ubuntu.com/security/notices/USN-8059-1

CVE-2025-22037, CVE-2025-37899

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8059-9

Topics%20covered

Topics Covered

security advisory critical Ubuntu kernel SMB Azure

Package Information

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