CVE-2009-2466 Memory corruption in n/a

Critical 10.0 Published 22 Jul 2009 Updated 7 Aug 2024

Remote attackers can cause denial of service or execute arbitrary code via memory corruption in the JavaScript engine of Mozilla 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-2009-2466?

CVE-2009-2466 is a critical memory corruption vulnerability in Mozilla Firefox, published on 22 Jul 2009. 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 JavaScript engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) nsDOMClassInfo.cpp, (2) JS_HashTableRawLookup, and (3) MirrorWrappedNativeParent and js_LockGCThingRT.

Weakness: CWE-787

Which versions are affected by CVE-2009-2466?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Thunderbird.

How do I fix CVE-2009-2466?

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-2009-2466 being exploited?

There is no known exploitation of CVE-2009-2466 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-492q-86f5-c96f.