Bug 2154790 (CVE-2021-4249)

Summary:	CVE-2021-4249 ghc-xml-conduit: infinite loop via crafted xml
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	petersen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:	ghc-xml-conduit 1.9.1.0	Doc Type:	If docs needed, set a value
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Marian Rehak 2022-12-19 09:29:49 UTC

Affected is an unknown function of the file xml-conduit/src/Text/XML/Stream/Parse.hs of the component DOCTYPE Entity Expansion Handler. The manipulation leads to infinite loop. It is possible to launch the attack remotely. The identifier of this vulnerability is VDB-216204.

Reference:

https://vuldb.com/?id.216204
https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea