RHSA-2023:0402 — Security Advisory
Red Hat Security Advisory: bind security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · January 24, 2023
Updated · September 2, 2026
Topic
An update for bind is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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.
Description
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: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220)
-
bind: processing large delegations may severely degrade resolver performance (CVE-2022-2795)
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.