CVE-2020-20892 Denial of service in n/a
Attackers can cause a denial of service in FFmpeg via a division by zero error in the lens correction filter.
- 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-2020-20892?
CVE-2020-20892 is a high-severity denial of service vulnerability in Ffmpeg Ffmpeg, published on 20 Sep 2021. 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
An issue was discovered in function filter_frame in libavfilter/vf_lenscorrection.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a division by zero.
Weakness: CWE-369
Which versions are affected by CVE-2020-20892?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2020-20892?
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-2020-20892 being exploited?
There is no known exploitation of CVE-2020-20892 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2020-20892, GHSA-pjpj-c8p5-7mqj, UBUNTU-CVE-2020-20892.