CVE-2011-0066 Use after free in n/a

Critical 10.0 Published 7 May 2011 Updated 6 Aug 2024

Remote attackers can execute arbitrary code via a use-after-free flaw in Firefox and SeaMonkey, requiring user interaction to visit a malicious page.

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-2011-0066?

CVE-2011-0066 is a critical use after free vulnerability in Mozilla Firefox, published on 7 May 2011. 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 Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17, and SeaMonkey before 2.0.14, allows remote attackers to execute arbitrary code via vectors related to OBJECT's mObserverList.

Weakness: CWE-399

Which versions are affected by CVE-2011-0066?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Seamonkey.

How do I fix CVE-2011-0066?

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-2011-0066 being exploited?

There is no known exploitation of CVE-2011-0066 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-7c8x-pggq-qrgr.