CVE-2023-5367 HIGH

CVE-2023-5367: Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-787
Published October 25, 2023
Last update November 6, 2025
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 25, 2023 CVE published
November 6, 2025 Record updated