CVE-2023-0494

Description (CNA)

A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.

Affected (CNA)

CWE

CWE-416

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2165995
• https://lists.x.org/archives/xorg-announce/2023-February/003320.html
• https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec
• https://security.gentoo.org/glsa/202305-30

ADP enrichment