Out-of-bounds Write Affecting xorg-x11-server-Xorg package, versions <0:1.20.4-22.amzn2.0.8


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-AMZN2-XORGX11SERVERXORG-9514501
  • published26 Mar 2025
  • disclosed25 Feb 2025

Introduced: 25 Feb 2025

CVE-2025-26596  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 xorg-x11-server-Xorg to version 0:1.20.4-22.amzn2.0.8 or higher.
This issue was patched in ALAS2-2025-2791.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-Xorg package and not the xorg-x11-server-Xorg package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.

CVSS Base Scores

version 3.1