CVE-2013-1720 Memory corruption in n/a

Medium 6.8 Published Updated

Remote attackers can execute arbitrary code or cause denial of service via heap-based buffer over-read in Firefox HTML5 Tree Builder.

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-2013-1720?

CVE-2013-1720 is a medium-severity memory corruption vulnerability in Mozilla Firefox, published on 18 Sep 2013. 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

The nsHtml5TreeBuilder::resetTheInsertionMode function in the HTML5 Tree Builder in Mozilla Firefox before 24.0, Thunderbird before 24.0, and SeaMonkey before 2.21 does not properly maintain the state of the insertion-mode stack for template elements, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer over-read) by triggering use of this stack in its empty state.

Weakness: CWE-119

Which versions are affected by CVE-2013-1720?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird.

How do I fix CVE-2013-1720?

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-2013-1720 being exploited?

There is no known exploitation of CVE-2013-1720 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-42xr-fff6-m3hh.

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