Integer Overflow or Wraparound Affecting xorg-x11-server package, versions <0:1.20.11-32.el9_7


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-ROCKY9-XORGX11SERVER-13850774
  • published7 Nov 2025
  • disclosed30 Oct 2025

Introduced: 30 Oct 2025

CVE-2025-62231  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 xorg-x11-server to version 0:1.20.11-32.el9_7 or higher.
This issue was patched in RLSA-2025:20961.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server package and not the xorg-x11-server package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.

References

CVSS Base Scores

version 3.1