CVE-2016-2831 Security feature bypass in n/a
Remote attackers can bypass fullscreen and pointerlock approval prompts in Firefox, enabling clickjacking, spoofing, or UI denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2016-2831?
CVE-2016-2831 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 13 Jun 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2016-2831?
It affects 5 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Mozilla Firefox, Opensuse Leap, Opensuse Opensuse.
How do I fix CVE-2016-2831?
Upgrade to a fixed version.
Is CVE-2016-2831 being exploited?
There is no known exploitation of CVE-2016-2831 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2016-2831, GHSA-v53r-6j66-5ch8, UBUNTU-CVE-2016-2831.