Bug 1815054

Summary:	python-bleach: behavior parsing did not match browser behavior which could result in mutation XSS
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	igor.raits, mrunge
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-19 16:31:42 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:	1815055, 1815056
Bug Blocks:

Description Michael Kaplan 2020-03-19 11:43:37 UTC

behavior parsing embedded MathML and SVG content with RCDATA tags did not match browser behavior which could result in mutation XSS.

Comment 1 Michael Kaplan 2020-03-19 11:44:18 UTC

Created python-bleach tracking bugs for this issue:

Affects: epel-all [bug 1815056]
Affects: fedora-all [bug 1815055]

Comment 3 Michael Kaplan 2020-03-19 11:55:04 UTC

External References:

https://github.com/mozilla/bleach/blob/master/CHANGES
line: 36-38

Comment 4 Product Security DevOps Team 2020-03-19 16:31:42 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.