Expired Pointer Dereference Affecting xorg-x11-server-Xwayland-debuginfo package, versions <0:24.1.3-1.amzn2023.0.6


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.31% (21st percentile)

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  • Snyk IDSNYK-AMZN2023-XORGX11SERVERXWAYLANDDEBUGINFO-18063302
  • published21 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-56000  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 xorg-x11-server-Xwayland-debuginfo to version 0:24.1.3-1.amzn2023.0.6 or higher.
This issue was patched in ALAS2023-2026-1944.

NVD Description

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

Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.

CVSS Base Scores

version 3.1