Description
In libavformat/mvdec.c in FFmpeg 3.3.3, a DoS in mv_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted MV file, which claims a large "nb_frames" field in the header but does not contain sufficient backing data, is provided, the loop over the frames would consume huge CPU and memory resources, since there is no EOF check inside the loop.
Metrics
CVSS 3.0 6.5/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.debian.org/security/2017/dsa-3996
- http://www.securityfocus.com/bid/100626
- https://github.com/FFmpeg/FFmpeg/commit/4f05e2e2dc1a89f38cd9f0960a6561083d714f1ePatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
- http://www.debian.org/security/2017/dsa-3996
- http://www.securityfocus.com/bid/100626
- https://github.com/FFmpeg/FFmpeg/commit/4f05e2e2dc1a89f38cd9f0960a6561083d714f1ePatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
Timeline
- Published
- Aug 31, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified