CVE-2022-2320 Information

Description

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

Reference

https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938 https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939 https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc