Integer Overflow or Wraparound Affecting tigervnc-server-module package, versions <0:1.8.0-24.amzn2.0.6


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.15% (35th percentile)

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  • Snyk IDSNYK-AMZN2-TIGERVNCSERVERMODULE-10692260
  • published11 Jul 2025
  • disclosed17 Jun 2025

Introduced: 17 Jun 2025

CVE-2025-49180  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 tigervnc-server-module to version 0:1.8.0-24.amzn2.0.6 or higher.
This issue was patched in ALAS2-2025-2917.

NVD Description

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

A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to an integer overflow when computing the total size to allocate.

References

CVSS Base Scores

version 3.1