Bug 1265778 (CVE-2015-4519)

Summary:	CVE-2015-4519 Mozilla: Dragging and dropping images exposes final URL after redirects (MFSA 2015-110)
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cschalle, gecko-bugs-nobody, jhorak, stransky
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:	2015-10-01 14:04:17 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:
Bug Blocks:	1261782

Description Prasad Pandit 2015-09-23 17:52:28 UTC

Security researcher Mario Gomes reported that when a previously loaded image
on a page is drag and dropped into content after a redirect, the redirected
URL is available to scripts. This is a violation of the Fetch specification's
defined behavior for "Atomic HTTP redirect handling" which states that
redirected URLs are not exposed to any APIs. This can allow for information
leakage.

External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2015-110/

Comment 1 Martin Prpič 2015-09-24 12:37:48 UTC

Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Mario Gomes as the original reporter.

Comment 2 errata-xmlrpc 2015-09-24 18:40:36 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2015:1834 https://rhn.redhat.com/errata/RHSA-2015-1834.html

Comment 4 errata-xmlrpc 2015-10-01 13:26:29 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2015:1852 https://rhn.redhat.com/errata/RHSA-2015-1852.html