Description
In libavformat/rmdec.c in FFmpeg 3.3.3, a DoS in ivr_read_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted IVR file, which claims a large "len" field in the header but does not contain sufficient backing data, is provided, the first type==4 loop would consume huge CPU resources, since there is no EOF check inside the loop.
Scores
CVSS v3
6.5
EPSS
0.0045
EPSS Percentile
63.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-834
Status
published
Products (1)
ffmpeg/ffmpeg
3.3.3
Published
Aug 31, 2017
Tracked Since
Feb 18, 2026