CVE-2009-4639 Denial of service in n/a
Remote attackers can cause a denial of service via a crafted AVI file triggering a divide-by-zero error in FFmpeg.
- 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-2009-4639?
CVE-2009-4639 is a medium-severity denial of service vulnerability in Ffmpeg Ffmpeg, published on 10 Feb 2010. 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 av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.
Weakness: CWE-189
Which versions are affected by CVE-2009-4639?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2009-4639?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2009-4639 being exploited?
There is no known exploitation of CVE-2009-4639 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2009-4639, GHSA-4x29-4984-2qcp.