Bug 1559250 (CVE-2018-3740)

Summary:	CVE-2018-3740 rubygem-sanitize: Improper filtering by libxml2 allows for cross-site scripting (XSS)
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	axilleas, strzibny
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	rubygem-sanitize 4.6.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:18:21 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:	1559251
Bug Blocks:

Description Sam Fowler 2018-03-22 04:53:41 UTC

rubygem-sanitize before version 4.6.3 is vulnerable to a HTML injection vulnerability when used with libxml2 from version 2.9.2. An attacker could exploit this to perfrom a cross-site scripting attack (XSS).


External References:

https://github.com/rgrove/sanitize/issues/176
http://seclists.org/oss-sec/2018/q1/254


Upstream Patch:

https://github.com/rgrove/sanitize/commit/01629a162e448a83d901456d0ba8b65f3b03d46e

Comment 1 Sam Fowler 2018-03-22 04:54:47 UTC

Created rubygem-sanitize tracking bugs for this issue:

Affects: fedora-all [bug 1559251]

Comment 2 Product Security DevOps Team 2019-06-10 10:18:21 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.