Bug 2326429 (CVE-2024-52616)

Summary:	CVE-2024-52616 avahi: Avahi Wide-Area DNS Predictable Transaction IDs
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. This predictable behavior facilitates DNS spoofing attacks, allowing attackers to guess transaction IDs.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2326448, 2326447
Bug Blocks:

Description OSIDB Bzimport 2024-11-15 09:55:15 UTC

The sequential increment of DNS transaction IDs makes Avahi vulnerable to DNS spoofing, allowing attackers to inject malicious DNS records. This can compromise the integrity of DNS responses, redirecting users to potentially harmful domains. This vulnerability poses a greater risk as it directly undermines the integrity of DNS resolution, affecting all systems using Avahi for wide-area DNS queries unless mitigations are applied.

Comment 3 errata-xmlrpc 2025-05-13 11:58:13 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:7437 https://access.redhat.com/errata/RHSA-2025:7437