Improper Locking Affecting xorg-x11-server-source package, versions <0:1.20.11-31.el9_6


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.24% (16th percentile)

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  • Snyk IDSNYK-ALMALINUX9-XORGX11SERVERSOURCE-10568014
  • published1 Jul 2025
  • disclosed23 Jun 2025

Introduced: 23 Jun 2025

CVE-2025-49178  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 xorg-x11-server-source to version 0:1.20.11-31.el9_6 or higher.
This issue was patched in ALSA-2025:9303.

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 AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service.

References

CVSS Base Scores

version 3.1