RHSA-2026:98497: 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

48 affected componentsFixes available
redhat/bind<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-chroot<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-debugsource<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-doc<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-utils<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-utils-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-libs<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-libs-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-license<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-utils<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-utils-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/python3-bind<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-chroot<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-debugsource<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-utils<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-utils-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-libs<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-libs-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-utils<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-utils-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-chroot<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-debugsource<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-utils<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-dnssec-utils-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-libs<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-libs-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-utils<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-utils-debuginfo<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-chroot<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-debuginfo<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-debugsource<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-dnssec-utils<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-dnssec-utils-debuginfo<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-libs<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-libs-debuginfo<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-utils<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-utils-debuginfo<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa
redhat/bind-devel<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-devel<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-doc<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-devel<9.16.50-12.el9_9.1
9.16.50-12.el9_9.1
redhat/bind-devel<9.16.50-12.el9_9.1.aa
9.16.50-12.el9_9.1.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  2. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  3. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  4. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  5. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  6. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  7. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  8. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  9. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  10. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  11. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  12. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  13. Upgrade

    Upgrade redhat/python3-bind to a version that resolves this vulnerability.

    Fixed in 9.16.50-12.el9_9.1
  14. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  15. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  16. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  17. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  18. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  19. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  20. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  21. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  22. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  23. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.aa
  24. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  25. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1
  26. Upgrade

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

    Fixed in 9.16.50-12.el9_9.1.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 issue has the potential for arbitrary code execution?

CVE-2026-94300 is identified as allowing arbitrary code execution through replay of GSS-TSIG UDP messages.

2

What denial-of-service conditions are addressed?

The update addresses unbounded processing of crafted DNS messages (CVE-2026-19630), an assertion failure during redirect processing (CVE-2026-96888), and an assertion failure in RPZ query processing (CVE-2026-97313).

3

Does the advisory state whether a default BIND configuration is vulnerable or provide interim mitigations?

No. The supplied advisory does not specify affected default configurations, vulnerable or fixed versions, or mitigations to use before applying the update.

Company

Resources

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