Out-of-bounds Read Affecting tigervnc-debuginfo package, versions <0:1.8.0-24.amzn2.0.11


Severity

Recommended
high

Based on Amazon Linux security rating.

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2-TIGERVNCDEBUGINFO-21695935
  • published25 Oct 2026
  • disclosed28 Oct 2026

Introduced: 25 Oct 2026

NewCVE-2026-93524  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 tigervnc-debuginfo to version 0:1.8.0-24.amzn2.0.11 or higher.
This issue was patched in ALAS2-2026-4013.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-debuginfo package and not the tigervnc-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server.

CVSS Base Scores

version 3.1