RHSA-2026:98637: Important: bind security update

Published Nov 11, 2026
·
Updated

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.Security Fix(es): bind: BIND: Denial of Service via unbounded processing of crafted DNS messages (CVE-2026-19630) bind: bind: Arbitrary code execution via GSS-TSIG UDP message replay (CVE-2026-94300) bind: bind: Denial of Service via assertion failure during redirect processing (CVE-2026-96888) bind: bind: Denial of service via assertion failure in RPZ query processing (CVE-2026-97313) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

46 affected componentsFixes available
redhat/bind<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-chroot<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-debugsource<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-dnssec-utils<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-dnssec-utils-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-libs<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-libs-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-license<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-utils<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-utils-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-chroot<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-debugsource<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-dnssec-utils<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-dnssec-utils-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-libs<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-libs-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-utils<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-utils-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-chroot<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-debugsource<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-dnssec-utils<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-dnssec-utils-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-libs<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-libs-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-utils<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-utils-debuginfo<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-chroot<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-debuginfo<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-debugsource<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-dnssec-utils<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-dnssec-utils-debuginfo<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-libs<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-libs-debuginfo<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-utils<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-utils-debuginfo<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-devel<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-doc<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-devel<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1
redhat/bind-devel<9.18.33-30.el10_3.1.aa
9.18.33-30.el10_3.1.aa
redhat/bind-devel<9.18.33-30.el10_3.1
9.18.33-30.el10_3.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  2. Upgrade

    Upgrade redhat/bind-chroot to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  3. Upgrade

    Upgrade redhat/bind-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  4. Upgrade

    Upgrade redhat/bind-debugsource to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  5. Upgrade

    Upgrade redhat/bind-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  6. Upgrade

    Upgrade redhat/bind-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  7. Upgrade

    Upgrade redhat/bind-libs to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  8. Upgrade

    Upgrade redhat/bind-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  9. Upgrade

    Upgrade redhat/bind-license to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  10. Upgrade

    Upgrade redhat/bind-utils to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  11. Upgrade

    Upgrade redhat/bind-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  12. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  13. Upgrade

    Upgrade redhat/bind-chroot to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  14. Upgrade

    Upgrade redhat/bind-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  15. Upgrade

    Upgrade redhat/bind-debugsource to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  16. Upgrade

    Upgrade redhat/bind-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  17. Upgrade

    Upgrade redhat/bind-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  18. Upgrade

    Upgrade redhat/bind-libs to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  19. Upgrade

    Upgrade redhat/bind-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  20. Upgrade

    Upgrade redhat/bind-utils to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  21. Upgrade

    Upgrade redhat/bind-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa
  22. Upgrade

    Upgrade redhat/bind-devel to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  23. Upgrade

    Upgrade redhat/bind-doc to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1
  24. Upgrade

    Upgrade redhat/bind-devel to a version that resolves this vulnerability.

    Fixed in 9.18.33-30.el10_3.1.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

Which BIND components are included in this update?

The update covers bind, bind-chroot, bind-libs, bind-dnssec-utils, and their listed debuginfo and debugsource packages.

2

What types of attacks are addressed?

The fixes address denial-of-service conditions involving crafted DNS messages, redirect processing, and RPZ query processing. They also address arbitrary code execution through replay of GSS-TSIG UDP messages.

3

What attacker interaction is identified for the code-execution issue?

The code-execution issue is described as involving replay of GSS-TSIG UDP messages. The advisory does not state any additional prerequisites, affected configurations, or mitigations.

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