Out-of-bounds Write Affecting libXfont2-debugsource package, versions <0:2.0.6-5.el10_2.1


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.4% (33rd percentile)

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  • Snyk IDSNYK-CENTOS10-LIBXFONT2DEBUGSOURCE-20542796
  • published7 Oct 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-56003  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Centos:10 libXfont2-debugsource to version 0:2.0.6-5.el10_2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libXfont2-debugsource package and not the libXfont2-debugsource package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.

CVSS Base Scores

version 3.1