Bug 1331725 (CVE-2016-4348)

Summary:	CVE-2016-4348 librsvg2: DoS parsing SVGs with circular definitions _rsvg_css_normalize_font_size() function
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anemec, carnil, mclasen, otte, rhughes, slawomir
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	librsvg2 2.40.12	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-07-04 04:30:56 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:	1331727, 1331728
Bug Blocks:	1331729

Description Martin Prpič 2016-04-29 11:50:45 UTC

A denial of service flaw was found in the way the librsvg2 library parsed SVG files. A specially crafted SVG file with circular definitions could cause an application using librsvg2 to crash.

This flaw is in the _rsvg_css_normalize_font_size() function.

Reference (including reproducer):

http://seclists.org/oss-sec/2016/q2/161

Comment 1 Martin Prpič 2016-04-29 11:59:43 UTC

Created librsvg2 tracking bugs for this issue:

Affects: fedora-all [bug 1331727]

Comment 2 Martin Prpič 2016-04-29 11:59:49 UTC

Created mingw-librsvg2 tracking bugs for this issue:

Affects: fedora-all [bug 1331728]

Comment 3 Andrej Nemec 2016-05-11 08:48:03 UTC

Upstream fix:

https://git.gnome.org/browse/librsvg/commit/?id=d1c9191949747f6dcfd207831d15dd4ba00e31f2

This fix is two commits before the other commit.