RHSA-2024:1789 — Security Advisory

An update for bind is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

• bind: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

• bind: Specific recursive query patterns may lead to an out-of-memory condition (CVE-2023-6516)

• bind: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution (CVE-2023-5679)

• bind: Querying RFC 1918 reverse zones may cause an assertion failure when “nxdomain-redirect” is enabled (CVE-2023-5517)

• bind: 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.