CVE-2023-5367

HIGH

X.org X Server < 21.1.9 - Out-of-Bounds Write

Title source: rule

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.

References (32)

... and 12 more

Scores

CVSS v3 7.8
EPSS 0.0006
EPSS Percentile 19.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-787
Status published

Affected Products (17)

x.org/x_server < 21.1.9
x.org/xwayland < 23.2.2
redhat/enterprise_linux
redhat/enterprise_linux
redhat/enterprise_linux
redhat/enterprise_linux_desktop
redhat/enterprise_linux_for_ibm_z_systems
redhat/enterprise_linux_for_power_big_endian
redhat/enterprise_linux_for_power_little_endian
redhat/enterprise_linux_for_scientific_computing
redhat/enterprise_linux_server
redhat/enterprise_linux_workstation
fedoraproject/fedora
fedoraproject/fedora
fedoraproject/fedora
... and 2 more

Timeline

Published Oct 25, 2023
Tracked Since Feb 18, 2026