RHSA-2026:55446HighCVSS 7.5

Red Hat Security Advisory: libXfont2 security update

Published
August 17, 2026
Last Modified
August 17, 2026

🔗 CVE IDs covered (2)

CVE-2026-44950 · pendingCVE-2026-59679 · pending

📋 Description

CVE-2026-44950 — libxfonts2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client CVE-2026-59679 — libxfont2: Font Server Client encoding[] Out-Of-Bounds Read/Write

🎯 Affected products33

  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-0:2.0.3-2.el8_10.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-0:2.0.3-2.el8_10.3.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-0:2.0.3-2.el8_10.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-0:2.0.3-2.el8_10.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-0:2.0.3-2.el8_10.3.src as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-0:2.0.3-2.el8_10.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.i686 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debuginfo-0:2.0.3-2.el8_10.3.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.i686 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.s390x as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • libXfont2-debugsource-0:2.0.3-2.el8_10.3.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-devel-0:2.0.3-2.el8_10.3.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • libXfont2-devel-0:2.0.3-2.el8_10.3.i686 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • +3 more not shown

✅ 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 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (5)