Use After Free Affecting tigervnc-selinux package, versions <0:1.11.0-22.el9_0.13


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-RHEL9-TIGERVNCSELINUX-9460520
  • published17 Mar 2025
  • disclosed25 Feb 2025

Introduced: 25 Feb 2025

NewCVE-2025-26600  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:9 tigervnc-selinux to version 0:1.11.0-22.el9_0.13 or higher.
This issue was patched in RHSA-2025:2873.

NVD Description

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

A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free.

CVSS Base Scores

version 3.1