CVE-2022-2320

high

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

https://www.zerodayinitiative.com/advisories/ZDI-22-963/

https://security.netapp.com/advisory/ntap-20221104-0003/

https://security.gentoo.org/glsa/202210-30

https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html

https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939

https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938

https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc

Details

Source: Mitre, NVD

Published: 2022-09-01

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High