RHSA-2026:51061HighCVSS 7.3

Red Hat Security Advisory: libXfont2 security update

Published
August 6, 2026
Last Modified
August 6, 2026

🔗 CVE IDs covered (3)

CVE-2026-56001 →CVE-2026-56002 →CVE-2026-56003 →

📋 Description

CVE-2026-56001 — libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow CVE-2026-56002 — libXfont2: PCF Font Parsing Heap Buffer Overflow CVE-2026-56003 — libXfont2: computeProps Property Buffer Heap Buffer Overflow

🎯 Affected products27

  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-0:2.0.6-5.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-0:2.0.6-5.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-0:2.0.6-5.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-0:2.0.6-5.el10_0.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-0:2.0.6-5.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debuginfo-0:2.0.6-5.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • libXfont2-debugsource-0:2.0.6-5.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-devel-0:2.0.6-5.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-devel-0:2.0.6-5.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-devel-0:2.0.6-5.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • libXfont2-devel-0:2.0.6-5.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (6)