Bug 1946289 (CVE-2021-20308)

Summary:	CVE-2021-20308 htmldoc: Integer overflow in image_load_gif()
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	pahan, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An integer overflow flaw was found in HTMLDOC. This flaw allows attackers to execute arbitrary code and cause a denial of service. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-04-05 23:35:14 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:	1946291, 1946290
Bug Blocks:	1946292

Description Pedro Sampaio 2021-04-05 17:36:20 UTC

Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.

Upstream bug:

https://github.com/michaelrsweet/htmldoc/issues/423

Comment 1 Pedro Sampaio 2021-04-05 17:36:51 UTC

Created htmldoc tracking bugs for this issue:

Affects: epel-7 [bug 1946291]
Affects: fedora-all [bug 1946290]

Comment 2 Product Security DevOps Team 2021-04-05 23:35:14 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.