Heap-based Buffer Overflow Affecting libXfont2-devel package, versions <0:2.0.6-5.el10_2.1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.39% (32nd percentile)

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  • Snyk IDSNYK-RHEL10-LIBXFONT2DEVEL-18381692
  • published29 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-56001  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade RHEL:10 libXfont2-devel to version 0:2.0.6-5.el10_2.1 or higher.
This issue was patched in RHSA-2026:47079.

NVD Description

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

A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont

CVSS Base Scores

version 3.1