Use After Free Affecting xorg-x11-server-common package, versions <0:1.20.11-32.el9_6


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-RHEL9-XORGX11SERVERCOMMON-13820810
  • published3 Nov 2025
  • disclosed29 Oct 2025

Introduced: 29 Oct 2025

NewCVE-2025-62230  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:9 xorg-x11-server-common to version 0:1.20.11-32.el9_6 or higher.
This issue was patched in RHSA-2025:19433.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-common package and not the xorg-x11-server-common package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.

CVSS Base Scores

version 3.1