RHSA-2024:3877 — Security Advisory
Red Hat Security Advisory: dnsmasq security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · June 13, 2024
Updated · April 23, 2026
Topic
An update for dnsmasq is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions.
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 dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
-
bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)
-
bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer the CVE page(s) listed in the References section.