CVE-2012-1947 Memory corruption in n/a
Remote attackers can execute arbitrary code via a heap-based buffer overflow in character-set conversion, requiring user interaction to trigger the vulnerability.
- 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-2012-1947?
CVE-2012-1947 is a critical memory corruption vulnerability in Mozilla Firefox, published on 5 Jun 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
Heap-based buffer overflow in the utf16_to_isolatin1 function in Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10 allows remote attackers to execute arbitrary code via vectors that trigger a character-set conversion failure.
Weakness: CWE-119
Which versions are affected by CVE-2012-1947?
It affects 4 products.
Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird, Mozilla Thunderbird Esr.
How do I fix CVE-2012-1947?
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-2012-1947 being exploited?
There is no known exploitation of CVE-2012-1947 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-22c8-wr9r-qr3j.