Bug 2042610 (CVE-2022-22846)

Summary:	CVE-2022-22846 python-dnslib: client does not validate DNS transaction ID
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	mail
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2022-01-19 20:30:37 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2042611, 2042612
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2022-01-19 19:44:33 UTC

The dnslib package through 0.9.16 for Python does not verify that the ID value in a DNS reply matches an ID value in a query.

Reference:
https://github.com/paulc/dnslib/issues/30

Comment 1 Guilherme de Almeida Suckevicz 2022-01-19 19:44:47 UTC

Created python-dnslib tracking bugs for this issue:

Affects: epel-8 [bug 2042612]
Affects: fedora-all [bug 2042611]

Comment 2 Product Security DevOps Team 2022-01-19 20:30:36 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.