CVE-2016-2831

Publication date 8 June 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

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.

Status

Package Ubuntu Release Status
firefox 16.04 LTS xenial
Fixed 47.0+build3-0ubuntu0.16.04.1
15.10 wily
Fixed 47.0+build3-0ubuntu0.15.10.1
14.04 LTS trusty
Fixed 47.0+build3-0ubuntu0.14.04.1
12.04 LTS precise
Fixed 47.0+build3-0ubuntu0.12.04.1
thunderbird 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected

Severity score breakdown

Parameter Value
Base score 8.8 · High
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

References

Related Ubuntu Security Notices (USN)

Other references