Bug 1342898 – CVE-2016-2831 Mozilla: Entering fullscreen and persistent pointerlock without user permission (MFSA 2016-58)

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 1342898 - (CVE-2016-2831) CVE-2016-2831 Mozilla: Entering fullscreen and persistent pointerlock without user permission (MFSA 2016-58)

Summary:	CVE-2016-2831 Mozilla: Entering fullscreen and persistent pointerlock without...

Status:	CLOSED ERRATA

Aliases:	CVE-2016-2831

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20160609,repor...
Keywords:	Security

Depends On:
Blocks:	1335788
	Show dependency tree / graph

Reported:	2016-06-06 00:19 EDT by Huzaifa S. Sidhpurwala
Modified:	2016-07-05 02:43 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-07-05 02:43:04 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2016:1217	normal	SHIPPED_LIVE	Critical: firefox security update	2016-06-08 17:00:59 EDT

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2016-06-06 00:19:07 EDT

Security researcher sushi Anton Larsson reported that when paired fullscreen and pointerlock requests are done in combination with closing windows, a pointerlock can be created within a fullscreen window without user permission. This pointerlock cannot then be cancelled without terminating the browser, resulting in a persistent denial of service attack. This can also used for spoofing and clickjacking attacks against the browser UI. 


External Reference:

https://www.mozilla.org/security/announce/2016/mfsa2016-58.html


Acknowledgements:

Name: the Mozilla project
Upstream: sushi Anton Larsson

Comment 1 errata-xmlrpc 2016-06-08 13:05:06 EDT

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-2016:1217 https://access.redhat.com/errata/RHSA-2016:1217

Note You need to log in before you can comment on or make changes to this bug.