CVE-2012-3985 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can execute cross-site scripting attacks in Firefox, Thunderbird, and SeaMonkey by exploiting HTML5 Same Origin Policy flaws.

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-2012-3985?

CVE-2012-3985 is a medium-severity cross-site scripting vulnerability in Canonical Ubuntu Linux, published on 10 Oct 2012. 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 16.0, Thunderbird before 16.0, and SeaMonkey before 2.13 do not properly implement the HTML5 Same Origin Policy, which allows remote attackers to conduct cross-site scripting (XSS) attacks by leveraging initial-origin access after document.domain has been set.

Weakness: CWE-79

Which versions are affected by CVE-2012-3985?

It affects 6 products.

Products include Canonical Ubuntu Linux, Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server.

How do I fix CVE-2012-3985?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2012-3985 being exploited?

There is no known exploitation of CVE-2012-3985 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-h2cq-jrvg-h8x6.

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