CVE-2016-5278 Memory corruption in n/a

High 8.8 Published Updated

Remote attackers can execute arbitrary code via crafted image data due to a heap-based buffer overflow in Firefox and Thunderbird.

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-2016-5278?

CVE-2016-5278 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 22 Sep 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

Heap-based buffer overflow in the nsBMPEncoder::AddImageFrame function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to execute arbitrary code via a crafted image data that is mishandled during the encoding of an image frame to an image.

Weakness: CWE-119

Which versions are affected by CVE-2016-5278?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-5278?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2016-5278 being exploited?

There is no known exploitation of CVE-2016-5278 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-5278, GHSA-jf8q-fmcm-x642, UBUNTU-CVE-2016-5278.

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