CVE-2020-20891 Memory corruption in n/a
A buffer overflow in FFmpeg's Gaussian blur filter allows attackers to cause a denial of service via crafted media files.
- 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-2020-20891?
CVE-2020-20891 is a high-severity memory corruption 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
Buffer Overflow vulnerability in function config_input in libavfilter/vf_gblur.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.
Weakness: CWE-120
Which versions are affected by CVE-2020-20891?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2020-20891?
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-2020-20891 being exploited?
There is no known exploitation of CVE-2020-20891 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2020-20891, GHSA-g25m-r8p8-98wq.