Bug 1569512 (CVE-2018-1000162)

Summary:	CVE-2018-1000162 php-erusev-parsedown: Cross Site Scripting in `setMarkupEscaped`
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	shawn
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php-erusev-parsedown 1.7.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-03-21 13:45:42 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:	1569513, 1569514
Bug Blocks:

Description Andrej Nemec 2018-04-19 12:22:06 UTC

Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in `setMarkupEscaped` for escaping HTML that can result in JavaScript code execution. This attack appears to be exploitable via specially crafted markdown that allows it to side step HTML escaping by breaking AST boundaries. This vulnerability appears to have been fixed in 1.7.0 and later.

References:

https://github.com/erusev/parsedown/pull/495
https://github.com/Roave/SecurityAdvisories/issues/44

Comment 1 Andrej Nemec 2018-04-19 12:22:25 UTC

Created php-erusev-parsedown tracking bugs for this issue:

Affects: fedora-all [bug 1569514]
Affects: epel-all [bug 1569513]

Comment 2 Shawn Iwinski 2019-03-21 03:32:18 UTC

All dependent bugs have been closed.  Can this tracking bug be closed?