Bug 1245587 (CVE-2015-1283)

Summary:	CVE-2015-1283 chromium-browser: Heap-buffer-overflow in expat.
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jrusnack, nparmar, sardella, slawomir, thomas.jarosch, tpopela, twalsh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Chrome 44.0.2403.89	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-07-27 09:35:01 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:	1245437, 1245438
Bug Blocks:	1245439

Description Vasyl Kaigorodov 2015-07-22 10:49:30 UTC

An unspecified heap-buffer-overflow flaw was found in the expat component of the Chromium browser.

Upstream bug: https://code.google.com/p/chromium/issues/detail?id=492052

External References:

http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html

Comment 1 errata-xmlrpc 2015-07-27 09:09:21 UTC

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2015:1499 https://rhn.redhat.com/errata/RHSA-2015-1499.html

Comment 2 Huzaifa S. Sidhpurwala 2015-07-27 09:35:01 UTC

This is the same flaw was CVE-2015-2716 as documented in the Mozilla advisory at:
https://www.mozilla.org/en-US/security/advisories/mfsa2015-54/

However in chromium, libxml2 is used to parse XML web content, expat is used a dependency of libjingle and other associated libraries.

Some more details about this flaw is available at:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-2716

Comment 3 Huzaifa S. Sidhpurwala 2015-07-27 10:03:34 UTC

Upstream commit (chromium):

https://chromium.googlesource.com/chromium/src.git/+/33f223ef93963e0efd0360445b28ce630f59bdc5

Comment 4 Slawomir Czarko 2015-08-26 08:20:04 UTC

Does expat itself need to be patched?

Comment 7 Thomas Jarosch 2016-04-06 07:43:39 UTC

Yes, expat itself needs to be patched/updated to fix CVE-2015-1283.

There's a new 2.1.1 upstream release fixing this exact issue. See: http://expat.sourceforge.net/

List of other distributions fixing this:
http://lwn.net/Vulnerabilities/681391/