CVE-2022-3965 ffmpeg QuickTime Graphics Video Encoder smcenc.c smc_encode_stream out-of-bounds
A remote attacker can trigger an out-of-bounds read in the QuickTime Graphics Video Encoder, potentially causing a crash or leaking memory.
- 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-2022-3965?
CVE-2022-3965 is a medium-severity memory corruption vulnerability in Ffmpeg Ffmpeg, published on 13 Nov 2022. 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
A vulnerability classified as problematic was found in ffmpeg. This vulnerability affects the function smc_encode_stream of the file libavcodec/smcenc.c of the component QuickTime Graphics Video Encoder. The manipulation of the argument y_size leads to out-of-bounds read. The attack can be initiated remotely. The name of the patch is 13c13109759090b7f7182480d075e13b36ed8edd. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213544.
Weakness: CWE-119
Which versions are affected by CVE-2022-3965?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2022-3965?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-3965 being exploited?
There is no known exploitation of CVE-2022-3965 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as CLEANSTART-2025-KK24381, DEBIAN-CVE-2022-3965, GHSA-pv63-r3vq-5qmc.