CVE-2016-1961 Use after free in n/a
Remote attackers can execute arbitrary code via a use-after-free flaw in Firefox's HTML document handling, requiring users to upgrade to patched versions.
- 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-2016-1961?
CVE-2016-1961 is a high-severity use after free vulnerability in Mozilla Firefox, published on 13 Mar 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
Use-after-free vulnerability in the nsHTMLDocument::SetBody function in dom/html/nsHTMLDocument.cpp in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code by leveraging mishandling of a root element, aka ZDI-CAN-3574.
Which versions are affected by CVE-2016-1961?
It affects 6 products.
Products include Mozilla Firefox, Mozilla Thunderbird, Opensuse Leap, Opensuse Opensuse, Oracle Linux, Suse Linux Enterprise.
How do I fix CVE-2016-1961?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2016-1961 being exploited?
There is no known exploitation of CVE-2016-1961 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2016-1961, GHSA-gcwx-37j7-6p37, UBUNTU-CVE-2016-1961.