CVE-2023-5367

HIGH7.8EPSS 0.06%

xorg-server - security update

Published: 10/25/2023Modified: 3/9/2026

Also known as:DSA-5534-1DEBIAN-CVE-2023-5367DEBIAN-CVE-2023-5380DLA-3631-1

Description

A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.

Affected packages (4)

Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u8
Debian/xorg-serverfrom 0, < 2:1.20.4-1+deb10u10
Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u8
Debian/xwaylandfrom 0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References (1)

ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-5367