RHSA-2020:4181 — Security Advisory
Red Hat Security Advisory: unbound security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 6, 2020
Updated · June 27, 2026
Topic
An update for unbound is now available for Red Hat Enterprise Linux 7.7 Extended Update Support.
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.
Description
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
-
unbound: amplification of an incoming query into a large number of queries directed to a target (CVE-2020-12662)
-
unbound: infinite loop via malformed DNS answers received from upstream servers (CVE-2020-12663)
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.