Bug 2357905 (CVE-2025-30195)

Summary:	CVE-2025-30195 pdns-recursor: A crafted zone can lead to an illegal memory access in the PowerDNS Recursor
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the PowerDNS Recursor. This vulnerability allows a denial of service via the publication of specially crafted DNS zones containing specific Resource Record Sets. Processing and caching these records can trigger illegal memory access, leading to a crash.	Story Points:	---
Clone Of:		Environment:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2357912, 2357914, 2357916, 2357915
Bug Blocks:

Description OSIDB Bzimport 2025-04-07 14:01:10 UTC

An attacker can publish a zone containing specific Resource Record Sets. Processing and caching results for these sets can lead to an illegal memory accesses and crash of the Recursor, causing a denial of service.

The remedy is: upgrade to the patched 5.2.1 version.

We would like to thank Volodymyr Ilyin for bringing this issue to our attention.