USN-6645-1: Linux kernel vulnerability
Published Feb 20, 2024
·Updated
It was discovered that the netfilter connection tracker for netlink in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion).
Affected Software
1 affected component
Canonical Linux kernel
Event History
May 9, 2025
Advisory Published
via Ubuntu·10:00 PM
Data Sourced
via Ubuntu·10:00 PM
DescriptionAffected Software
Frequently Asked Questions
1
What is the severity of USN-6645-1?
USN-6645-1 is classified as a denial of service vulnerability that may lead to memory exhaustion.
2
How do I fix USN-6645-1?
You can resolve USN-6645-1 by upgrading to linux-image packages with versions 3.13.0-196.247 or 3.13.0-196.206.
3
Who is affected by USN-6645-1?
USN-6645-1 affects Ubuntu 14.04 users running certain linux-image packages.
4
What type of vulnerability is USN-6645-1?
USN-6645-1 is a local denial of service vulnerability due to improper reference counting.
5
Can USN-6645-1 be exploited remotely?
No, USN-6645-1 requires local access to exploit the vulnerability.