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


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-AMZN2-TIGERVNCSERVERAPPLET-21696884
  • 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-server-applet 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-server-applet package and not the tigervnc-server-applet 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