RHSA-2026:99707HighCVSS 7.5

Red Hat Security Advisory: libpcap security update

Published
November 12, 2026
Last Modified
November 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-6554 →

📋 Description

CVE-2026-6554 — libpcap: libpcap: Denial of Service via infinite loop in BPF interpreter

🎯 Affected products33

  • Red Hat Enterprise Linux BaseOS (v. 9)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-14:1.10.0-4.el9_9.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-14:1.10.0-4.el9_9.2.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-14:1.10.0-4.el9_9.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-14:1.10.0-4.el9_9.2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-14:1.10.0-4.el9_9.2.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-14:1.10.0-4.el9_9.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.i686 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debuginfo-14:1.10.0-4.el9_9.2.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.i686 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • libpcap-debugsource-14:1.10.0-4.el9_9.2.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-devel-14:1.10.0-4.el9_9.2.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • libpcap-devel-14:1.10.0-4.el9_9.2.i686 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)
  • +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

🔗 References (4)