CVE-2022-2320 - A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetD

CVE-2022-2320

Summary

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

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
https://www.zerodayinitiative.com/advisories/ZDI-22-963/
https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
https://security.gentoo.org/glsa/202210-30
https://security.netapp.com/advisory/ntap-20221104-0003/

Vulnerable Configurations

cpe:2.3:a:x.org:xorg-server:21.1.0:*:*:*:*:*:*:*
cpe:2.3:a:x.org:xorg-server:21.1.0:*:*:*:*:*:*:*

CVSS

Base:	None
Impact:
Exploitability:

CWE

CWE-787

CAPEC

Access

Vector	Complexity	Authentication

Impact

Confidentiality	Integrity	Availability

Last major update

01-02-2024 - 02:27

Published

01-09-2022 - 21:15

Last modified

01-02-2024 - 02:27