CVE-2011-3940 Memory corruption in n/a
Remote attackers can cause denial of service via crafted NSV files due to uninitialized stream usage in FFmpeg and Libav.
- 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-2011-3940?
CVE-2011-3940 is a medium-severity memory corruption vulnerability in Ffmpeg Ffmpeg, published on 20 Aug 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
nsvdec.c in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (out-of-bounds read and write) via a crafted NSV file that triggers "use of uninitialized streams."
Weakness: CWE-119
Which versions are affected by CVE-2011-3940?
It affects 2 products.
Products include Ffmpeg Ffmpeg, Libav Libav.
How do I fix CVE-2011-3940?
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-2011-3940 being exploited?
There is no known exploitation of CVE-2011-3940 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2011-3940, GHSA-xwfp-hmj5-wfj5.