Use After Free Affecting tigervnc-license package, versions <0:1.14.1-3.amzn2023.0.3


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-TIGERVNCLICENSE-13880940
  • published11 Nov 2025
  • disclosed30 Oct 2025

Introduced: 30 Oct 2025

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

How to fix?

Upgrade Amazon-Linux:2023 tigervnc-license to version 0:1.14.1-3.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2025-1267.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-license package and not the tigervnc-license package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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