Bug 2099404 (CVE-2022-32983)

Summary:	CVE-2022-32983 knot-resolver: DNS cache poisoning
Product:	[Other] Security Response	Reporter:	Patrick Del Bello <pdelbell>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dns-sig, jakub.ruzicka, jv+fedora, nicki, pspacek
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-06-21 01:06:33 UTC	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:	2099405, 2099406
Bug Blocks:

Description Patrick Del Bello 2022-06-20 21:23:17 UTC

Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.

https://knot-resolver.readthedocs.io/en/stable/modules-policy.html#forwarding
https://github.com/CZ-NIC/knot-resolver/commit/ccb9d9794db5eb757c33becf65cb1cf48ecfd968

Comment 1 Patrick Del Bello 2022-06-20 21:23:35 UTC

Created knot-resolver tracking bugs for this issue:

Affects: epel-all [bug 2099405]
Affects: fedora-all [bug 2099406]

Comment 2 Product Security DevOps Team 2022-06-21 01:06:31 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.