CVE-2023-3776

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free vulnerability in the Linux kernel's net/sched: cls fw component can be exploited to achieve local privilege escalation. If tcf change indev() fails, fw set parms() will immediately return an error after incrementing or decrementing the reference counter in tcf bind filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

Recommendations Upgrade past commit 0323bce598eea038714f941ce2b22541c46d488f.