Debian: CVE-2023-0494: xorg-server, xwayland -- security update

Debian: CVE-2023-0494: xorg-server, xwayland -- security update

Severity

7

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

02/08/2023

Created

02/08/2023

Added

02/08/2023

Modified

01/28/2025

Description

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.

Solution(s)

• debian-upgrade-xorg-server
• debian-upgrade-xwayland

References

• https://attackerkb.com/topics/cve-2023-0494
• CVE - 2023-0494
• DLA-3310-1