RHSA-2024:1647: Important: bind9.16 security update

Published Apr 2, 2024
·
Updated

Important: bind9.16 security 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): bind9.16: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868) bind9.16: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387) bind9.16: Specific recursive query patterns may lead to an out-of-memory condition (CVE-2023-6516) bind9.16: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution (CVE-2023-5679) bind9.16: Querying RFC 1918 reverse zones may cause an assertion failure when “nxdomain-redirect” is enabled (CVE-2023-5517) bind9.16: bind9: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408) 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

59 affected componentsFixes available
redhat/bind9.16<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-chroot<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-debugsource<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-libs<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-libs-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-license<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-utils<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-utils-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-chroot<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-debugsource<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-libs<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-libs-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-utils<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-utils-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-chroot<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-debugsource<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-libs<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-libs-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-utils<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-utils-debuginfo<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-chroot<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-debuginfo<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-debugsource<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-libs<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-libs-debuginfo<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-utils<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-utils-debuginfo<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-devel<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-devel<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-dnssec-utils<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-doc<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/python3-bind9.16<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-devel<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-dnssec-utils<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-dnssec-utils<9.16.23-0.7.el8_6.5
9.16.23-0.7.el8_6.5
redhat/bind9.16-devel<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
redhat/bind9.16-dnssec-utils<9.16.23-0.7.el8_6.5.aa
9.16.23-0.7.el8_6.5.aa
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - TUS
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/bind9.16 to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  2. Upgrade

    Upgrade redhat/bind9.16-chroot to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  3. Upgrade

    Upgrade redhat/bind9.16-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  4. Upgrade

    Upgrade redhat/bind9.16-debugsource to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  5. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  6. Upgrade

    Upgrade redhat/bind9.16-libs to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  7. Upgrade

    Upgrade redhat/bind9.16-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  8. Upgrade

    Upgrade redhat/bind9.16-license to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  9. Upgrade

    Upgrade redhat/bind9.16-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  10. Upgrade

    Upgrade redhat/bind9.16-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  11. Upgrade

    Upgrade redhat/bind9.16 to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  12. Upgrade

    Upgrade redhat/bind9.16-chroot to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  13. Upgrade

    Upgrade redhat/bind9.16-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  14. Upgrade

    Upgrade redhat/bind9.16-debugsource to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  15. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  16. Upgrade

    Upgrade redhat/bind9.16-libs to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  17. Upgrade

    Upgrade redhat/bind9.16-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  18. Upgrade

    Upgrade redhat/bind9.16-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  19. Upgrade

    Upgrade redhat/bind9.16-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  20. Upgrade

    Upgrade redhat/bind9.16-devel to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  21. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  22. Upgrade

    Upgrade redhat/bind9.16-doc to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  23. Upgrade

    Upgrade redhat/python3-bind9.16 to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5
  24. Upgrade

    Upgrade redhat/bind9.16-devel to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  25. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.7.el8_6.5.aa
  26. Upgrade

    Upgrade BIND (named) bind9.16 to a version that resolves this vulnerability.

    Fixed in bind9.16
  27. Compensating control

    If you cannot immediately apply the bind9.16 security update, avoid enabling DNS64 and serve-stale together because this may cause an assertion failure during recursive resolution (CVE-2023-5679).

  28. Compensating control

    If you cannot immediately apply the bind9.16 security update, mitigate KeyTrap risk by limiting exposure of the DNSSEC validator functionality; extreme CPU consumption can occur in DNSSEC validator (CVE-2023-50387).

  29. Compensating control

    If you cannot immediately apply the bind9.16 security update, avoid querying RFC 1918 reverse zones while nxdomain-redirect is enabled, since this may cause an assertion failure (CVE-2023-5517).

  30. Compensating control

    If you cannot immediately apply the bind9.16 security update, reduce exposure to specific recursive query patterns that may lead to an out-of-memory condition (CVE-2023-6516).

  31. Compensating control

    If you cannot immediately apply the bind9.16 security update, protect the DNS service against large DNS messages that may cause excessive CPU load (CVE-2023-4408).

  32. Compensating control

    If you cannot immediately apply the bind9.16 security update, mitigate the risk that preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868) by restricting/monitoring traffic that triggers these proof-generation paths.

Event History

Apr 2, 2024
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·08:04 PM

Frequently Asked Questions

1

What is the severity of RHSA-2024:1647?

The severity of RHSA-2024:1647 is classified as Important.

2

How do I fix RHSA-2024:1647?

To fix RHSA-2024:1647, update the affected bind9.16 package to version 9.16.23-0.7.el8_6.5.

3

Which versions of BIND are affected by RHSA-2024:1647?

RHSA-2024:1647 affects multiple versions of BIND as specified in the advisory for Red Hat Enterprise Linux product lines.

4

Is RHSA-2024:1647 related to DNS security?

Yes, RHSA-2024:1647 addresses security vulnerabilities in the Berkeley Internet Name Domain (BIND) related to DNS protocols.

5

What should I do if I cannot update to the recommended version for RHSA-2024:1647?

If you cannot update, consult Red Hat support for guidance on mitigating risks associated with the vulnerabilities identified in RHSA-2024:1647.

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