RHSA-2024:1334: Important: dnsmasq security update

Published Mar 14, 2024
·
Updated

Important: dnsmasq security update

Other sources

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.Security Fix(es): dnsmasq: bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387) dnsmasq: 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 to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

24 affected componentsFixes available
redhat/dnsmasq<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-debuginfo<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-debugsource<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-utils<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-utils-debuginfo<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-debuginfo<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-debugsource<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-utils<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-utils-debuginfo<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-debuginfo<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-debugsource<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-utils<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq-utils-debuginfo<2.85-14.el9_3.1
2.85-14.el9_3.1
redhat/dnsmasq<2.85-14.el9_3.1.aa
2.85-14.el9_3.1.aa
redhat/dnsmasq-debuginfo<2.85-14.el9_3.1.aa
2.85-14.el9_3.1.aa
redhat/dnsmasq-debugsource<2.85-14.el9_3.1.aa
2.85-14.el9_3.1.aa
redhat/dnsmasq-utils<2.85-14.el9_3.1.aa
2.85-14.el9_3.1.aa
redhat/dnsmasq-utils-debuginfo<2.85-14.el9_3.1.aa
2.85-14.el9_3.1.aa
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian

Remediation

Event History

Mar 14, 2024
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·03:13 PM

Frequently Asked Questions

1

What is the severity of RHSA-2024:1334?

RHSA-2024:1334 is classified as important due to the potential for extreme CPU consumption in DNSSEC validation.

2

How do I fix RHSA-2024:1334?

To fix RHSA-2024:1334, update the dnsmasq package to version 2.85-14.el9_3.1 or later.

3

Which systems are affected by RHSA-2024:1334?

RHSA-2024:1334 affects Red Hat Enterprise Linux for IBM z Systems, ARM 64, x86_64, and Power architectures.

4

What are the main vulnerabilities addressed in RHSA-2024:1334?

The main vulnerability addressed is the extreme CPU consumption in DNSSEC validation due to a flaw in dnsmasq.

5

Is a reboot required after updating to resolve RHSA-2024:1334?

A reboot is not typically required after updating dnsmasq for RHSA-2024:1334, but it is recommended to check specific application behavior.

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