Bug 1967041 (CVE-2021-23180)

Summary:	CVE-2021-23180 htmldoc: null pointer dereference in function in file_extension()
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	extras-orphan, pahan, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	htmldoc 1.9.12	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-06-02 11:32:29 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:	1967044, 1967043
Bug Blocks:	1967042

Description Dhananjay Arunesh 2021-06-02 11:12:51 UTC

A flaw was found in htmldoc in versions prior to 1.9.12. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.

Reference:
https://github.com/michaelrsweet/htmldoc/issues/418

Upstream patch:
https://github.com/michaelrsweet/htmldoc/commit/19c582fb32eac74b57e155cffbb529377a9e751a

Comment 1 Dhananjay Arunesh 2021-06-02 11:14:00 UTC

Created htmldoc tracking bugs for this issue:

Affects: epel-7 [bug 1967044]
Affects: fedora-all [bug 1967043]

Comment 2 Product Security DevOps Team 2021-06-02 11:32:29 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.