CVE-2023-32629

Name of the Vulnerable Software and Affected Versions Ubuntu kernels (affected versions not specified)

Description The issue is related to a local privilege escalation vulnerability in Ubuntu kernels, specifically in the overlayfs ovl copy up meta inode data function, which skips permission checks when calling ovl do setxattr. This allows an attacker to execute arbitrary code or cause a denial of service. The vulnerability has been exploited in real-world incidents to achieve easy root access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.