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Ubuntu 24.04: Linux Kernel Critical Security Flaws USN-7936-1

ubuntu
Calendar Grey December 15, 2025
Dist Ubuntu Esm H88
Multiple security flaws in Ubuntu's Linux kernel fixed in USN-7936-1 to prevent system compromise and ensure stability.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oem-6.14: Linux kernel for OEM 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:

- Cryptographic API;

- Compute Acceleration Framework;

- Media drivers;

- Netfilter;

- TLS protocol;

(CVE-2025-39946, CVE-2025-39964, CVE-2025-39993, CVE-2025-40018,

CVE-2025-40172, CVE-2025-40177)

Topics%20covered

Topics Covered

security advisory kernel update critical Ubuntu system compromise Linux kernel

Update Instructions

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

Ubuntu 24.04 LTS
   linux-image-6.14.0-1017-oem     6.14.0-1017.17
   linux-image-oem-24.04           6.14.0-1018.18
   linux-image-oem-24.04a          6.14.0-1018.18
   linux-image-oem-24.04b          6.14.0-1018.18
   linux-image-oem-24.04c          6.14.0-1018.18
   linux-image-oem-6.14            6.14.0-1018.18

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-7936-1

CVE-2025-39946, CVE-2025-39964, CVE-2025-39993, CVE-2025-40018,

CVE-2025-40172, CVE-2025-40177

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7936-1

Topics%20covered

Topics Covered

security advisory kernel update critical Ubuntu system compromise Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-6.14/6.14.0-1017.17

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