Use After Free Affecting xorg-server-hwe-16.04 package, versions <2:1.19.6-1ubuntu4.1~16.04.6+esm7


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UBUNTU1604-XORGSERVERHWE1604-8746962
  • published10 Mar 2025
  • disclosed25 Feb 2025

Introduced: 25 Feb 2025

NewCVE-2025-26594  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 xorg-server-hwe-16.04 to version 2:1.19.6-1ubuntu4.1~16.04.6+esm7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-server-hwe-16.04 package and not the xorg-server-hwe-16.04 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.

CVSS Base Scores

version 3.1