Bug 1272461 (CVE-2015-7184)

Summary:	CVE-2015-7184 firefox: cross-origin restriction bypass using Fetch
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gecko-bugs-nobody, jhorak, jrusnack, pjasicek, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 41.0.2	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-16 12:58:55 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:

Description Martin Prpič 2015-10-16 12:57:09 UTC

A cross-origin restriction bypass flaw was found in Firefox:

Security researcher Abdulrahman Alqabandi reported that the fetch() API did not correctly implement the Cross-Origin Resource Sharing (CORS) specification, allowing a malicious page to access private data from other origins. Mozilla developer Ben Kelly independently reported the same issue.

This issue was fixed in Firefox 41.0.2.

Upstream bugs:

https://bugzilla.mozilla.org/show_bug.cgi?id=1208339
https://bugzilla.mozilla.org/show_bug.cgi?id=1212669

External References:

https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/

Comment 1 Martin Prpič 2015-10-16 12:58:09 UTC

Fixed in Fedora in packages:

firefox-41.0.2-2.fc23
firefox-41.0.2-2.fc21
firefox-41.0.2-2.fc24
firefox-41.0.2-2.fc22

Comment 2 Martin Prpič 2015-10-16 12:58:55 UTC

Statement:

This issue did not affect the versions of firefox as shipped with Red Hat Enterprise Linux 5, 6, and 7.