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OpenAdvisories
High ALSA-2023:4100 1 CVE

Important: bind9.16 security update

Published Jul 17, 2023 · Updated Oct 29, 2026

Summary

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: named's configured cache size limit can be significantly exceeded (CVE-2023-2828)

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.

Fixed packages 9

ReleasePackageFixed in
AlmaLinux · 8 bind9.16 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-chroot 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-devel 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-dnssec-utils 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-doc 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-libs 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-license 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 bind9.16-utils 32:9.16.23-0.14.el8_8.1.alma
AlmaLinux · 8 python3-bind9.16 32:9.16.23-0.14.el8_8.1.alma

Vulnerabilities 1

  • High 7.5

    named's configured cache size limit can be significantly exceeded

    Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size`…

References

  • report
    https://access.redhat.com/security/cve/CVE-2023-2828
  • report
    https://bugzilla.redhat.com/2216227
  • advisory
    https://errata.almalinux.org/8/ALSA-2023-4100.html