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Ubuntu 14.04 LTS USN-6601-1 Critical: Denial of Service in Kernel

ubuntu
Calendar Grey January 25, 2024
Dist Ubuntu Esm H88
Linux kernel timing issue exposes elevated privileges. Urgent update released for Ubuntu 14.04 LTS clients.
The system could be made to crash or run programs as an administrator.

Summary

The system could be made to crash or run programs as an administrator.

Software Description:

- linux: Linux kernel

Details:

It was discovered that the IGMP protocol implementation in the Linux kernel

contained a race condition, leading to a use-after-free vulnerability. A

local attacker could use this to cause a denial of service (system crash)

or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu critical threat kernel issue use-after-free

Update Instructions

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

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   linux-image-3.13.0-195-generic  3.13.0-195.246
   linux-image-3.13.0-195-lowlatency  3.13.0-195.246
   linux-image-generic             3.13.0.195.205
   linux-image-generic-lts-trusty  3.13.0.195.205
   linux-image-lowlatency          3.13.0.195.205
   linux-image-server              3.13.0.195.205
   linux-image-virtual             3.13.0.195.205

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-6601-1

CVE-2023-6932

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6601-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu critical threat kernel issue use-after-free

Package Information

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