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.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202210-30
Patch, Third Party Advisory
https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc
Patch, Third Party Advisory
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938
Patch, Third Party Advisory
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939
Patch, Third Party Advisory
https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221104-0003/
Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-22-963/
Scores
CVSS v3
7.8
EPSS
0.0057
EPSS Percentile
43.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
x.org/x_server
21.1.0
Published
Sep 01, 2022
Tracked Since
Feb 18, 2026