Bug 1106857 (CVE-2014-3995)

Summary:	CVE-2014-3995 python-djblets: XSS Vulnerability in Djblets gravatar templates
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dpierce, jrusnack, puiterwijk, sgallagh, surefedora, vkrizan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-06-18 21:03:22 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:	1105560, 1106859
Bug Blocks:

Description Vincent Danen 2014-06-09 17:50:51 UTC

It was reported [1],[2] that he generated gravatar HTML wasn't handling escaping of the display name of the user, allowing an attacker to choose a name that would close out the <img> tag and inject a <script> tag.

By switching to Django's format_html(), we can guarantee safe escaping of content.

Patches for 0.7.x [3] and 0.8.x [4] are available.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1105560
[3] http://seclists.org/oss-sec/2014/q2/494
[4] https://reviews.reviewboard.org/r/5947/diff/
[5] https://reviews.reviewboard.org/r/5946/diff/

Comment 1 Vincent Danen 2014-06-09 17:53:24 UTC

Created python-djblets tracking bugs for this issue:

Affects: epel-6 [bug 1106859]

Comment 2 Vincent Danen 2014-06-18 21:03:22 UTC

python-djblets-0.7.30-2.fc20 has been pushed to the Fedora 20 stable repository.

python-djblets-0.7.30-2.fc19 has been pushed to the Fedora 19 stable repository.