RHSA-2026:24338HighCVSS 7.5

Red Hat Security Advisory: bind security update

Published
June 8, 2026
Last Modified
August 24, 2026

🔗 CVE IDs covered (2)

CVE-2026-3039 →CVE-2026-5946 →

📋 Description

CVE-2026-3039 — bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation CVE-2026-5946 — bind: BIND: Denial of Service via specially crafted DNS messages

🎯 Affected products69

  • Red Hat Enterprise Linux AppStream (v. 10)
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-32:9.18.33-15.el10_2.2.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-32:9.18.33-15.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-chroot-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-chroot-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-chroot-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-chroot-32:9.18.33-15.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debuginfo-32:9.18.33-15.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • bind-debugsource-32:9.18.33-15.el10_2.2.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-devel-32:9.18.33-15.el10_2.2.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-devel-32:9.18.33-15.el10_2.2.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • bind-devel-32:9.18.33-15.el10_2.2.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)
  • +39 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. Example: ```bash # Edit /etc/named.conf and remove or comment out lines related to tkey-gssapi-keytab or tkey-gssapi-credential. # For example, remove or comment out: # key "gssapi-key" { # algorithm GSSAPI; # secret "BASE64_ENCODED_KEY"; # }; # # Then reload the named service: systemctl reload named ``` Reloading the `named` service may cause a brief interruption in DNS resolution. 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)