RHSA-2026:95241: Important: bind security, bug fix, and enhancement update

Published Nov 4, 2026
·
Updated

Important: bind security, bug fix, and enhancement update

Other sources

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): bind9: bind: BIND 9: Denial of Service via 16-bit length truncation in DNS negative cache handling (CVE-2026-19667) bind: BIND: Denial of Service via crafted DNSSEC reply (CVE-2026-80274) bind: BIND: Denial of Service via malformed DNS64 responses (CVE-2026-19666) 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) Bug Fix(es) and Enhancement(s): bind: Avoid costly reload of IdM named due to logrotate operation [rhel-9.4.z] (JIRA:RHEL-245353) bind: New root trust anchor key for DNSSEC [rhel-9.4.z] (JIRA:RHEL-255761) bind 9.16 crash with SIGSEGV [rhel-9.4.z] (JIRA:RHEL-280607) 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.

— Red Hat

Affected Software

52 affected componentsFixes available
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux Server - AUS
redhat/bind<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-chroot<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-debugsource<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-doc<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-utils<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-utils-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-libs<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-libs-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-license<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-utils<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-utils-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/python3-bind<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-chroot<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-debugsource<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-utils<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-utils-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-libs<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-libs-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-utils<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-utils-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-chroot<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-debuginfo<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-debugsource<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-dnssec-utils<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-dnssec-utils-debuginfo<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-libs<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-libs-debuginfo<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-utils<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-utils-debuginfo<9.16.23-18.el9_4.13.aa
9.16.23-18.el9_4.13.aa
redhat/bind-chroot<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-debugsource<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-utils<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-dnssec-utils-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-libs<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-libs-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-utils<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13
redhat/bind-utils-debuginfo<9.16.23-18.el9_4.13
9.16.23-18.el9_4.13

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  2. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  3. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  4. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  5. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  6. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  7. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  8. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  9. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  10. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  11. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  12. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  13. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13
  14. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  15. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  16. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  17. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  18. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  19. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  20. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  21. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  22. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa
  23. Upgrade

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

    Fixed in 9.16.23-18.el9_4.13.aa

Event History

Nov 4, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·03:11 PM
Data Sourced
via Red Hat·03:11 PM
Severity

Frequently Asked Questions

1

Which installed packages are covered by this advisory?

The advisory lists redhat/bind, redhat/bind-chroot, redhat/bind-debuginfo, redhat/bind-debugsource, redhat/bind-dnssec-utils, redhat/bind-dnssec-utils-debuginfo, redhat/bind-libs, and redhat/bind-libs-debuginfo.

2

What kinds of attacker-controlled DNS traffic are involved in the reported issues?

The security fixes include denial-of-service conditions triggered by crafted DNS messages, crafted DNSSEC replies, malformed DNS64 responses, negative-cache handling, redirect processing, and RPZ query processing. One issue is described as arbitrary code execution through GSS-TSIG UDP message replay.

3

Are only authoritative DNS servers relevant to this update?

No. The described BIND distribution includes the named DNS server, a resolver library for applications interfacing with DNS, and DNS server verification tools. The listed affected packages also include bind-libs and DNSSEC utilities.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203