Information Exposure Affecting xorg-x11-server-source package, versions <0:21.1.13-5.amzn2023.0.6


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-AMZN2023-XORGX11SERVERSOURCE-10694760
  • published11 Jul 2025
  • disclosed17 Jun 2025

Introduced: 17 Jun 2025

CVE-2025-49177  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 xorg-x11-server-source to version 0:21.1.13-5.amzn2023.0.6 or higher.
This issue was patched in ALAS2023-2025-1061.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-source package and not the xorg-x11-server-source package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests.

CVSS Base Scores

version 3.1