CVE-2016-2819 Memory corruption in n/a

High 8.8 Published Updated

Remote attackers can execute arbitrary code via crafted HTML5 fragments in Firefox, 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-2016-2819?

CVE-2016-2819 is a high-severity memory corruption 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

Heap-based buffer overflow in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allows remote attackers to execute arbitrary code via foreign-context HTML5 fragments, as demonstrated by fragments within an SVG element.

Weakness: CWE-119

Which versions are affected by CVE-2016-2819?

It affects 5 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Mozilla Firefox, Opensuse Leap, Opensuse Opensuse.

How do I fix CVE-2016-2819?

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-2016-2819 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-2819 exists.

Public exploit code: 1 Exploit-DB entry.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-2819, GHSA-w5jf-q8p2-qgmx, UBUNTU-CVE-2016-2819.

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