RHSA-2023:6699MediumCVSS 8.8

Red Hat Security Advisory: krb5 security and bug fix update

Published
November 7, 2023
Last Modified
November 6, 2026

🔗 CVE IDs covered (2)

📋 Description

CVE-2023-36054 — krb5: Denial of service through freeing uninitialized pointer CVE-2023-39975 — krb5: double-free in KDC TGS processing

🎯 Affected products117

  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-0:1.21.1-1.el9.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debuginfo-0:1.21.1-1.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-debugsource-0:1.21.1-1.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-devel-0:1.21.1-1.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-devel-0:1.21.1-1.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-devel-0:1.21.1-1.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-devel-0:1.21.1-1.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-devel-0:1.21.1-1.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • krb5-libs-0:1.21.1-1.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • krb5-libs-0:1.21.1-1.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • +87 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 After installing the updated packages, running Kerberos services (krb5kdc, kadmin, and kprop) will be restarted automatically.

🔗 References (10)