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CVE-2016-2831

Published: 8 June 2016

Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 do not ensure that the user approves the fullscreen and pointerlock settings, which allows remote attackers to cause a denial of service (UI outage), or conduct clickjacking or spoofing attacks, via a crafted web site.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
precise
Released (47.0+build3-0ubuntu0.12.04.1)
trusty
Released (47.0+build3-0ubuntu0.14.04.1)
upstream
Released (47.0)
wily
Released (47.0+build3-0ubuntu0.15.10.1)
xenial
Released (47.0+build3-0ubuntu0.16.04.1)
thunderbird
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist
(trusty was not-affected)
upstream Not vulnerable

wily Not vulnerable

xenial Not vulnerable

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H