CVE-2009-2477 Memory corruption in n/a
Remote attackers can execute arbitrary code in Mozilla Firefox via a crafted document triggering uninitialized memory access in the JIT compiler.
- 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
- None listed
What is CVE-2009-2477?
CVE-2009-2477 is a critical memory corruption vulnerability in Mozilla Firefox, published on 15 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
js/src/jstracer.cpp in the Just-in-time (JIT) JavaScript compiler (aka TraceMonkey) in Mozilla Firefox 3.5 before 3.5.1 allows remote attackers to execute arbitrary code via certain use of the escape function that triggers access to uninitialized memory locations, as originally demonstrated by a document containing P and FONT elements.
Weakness: CWE-94
Which versions are affected by CVE-2009-2477?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2009-2477?
No fix has been published for CVE-2009-2477 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-2477 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2477 exists.
Public exploit code: 1 Metasploit module and 4 Exploit-DB entries.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-p5fj-7pgr-xv7v.