CVE-2017-14222

In libavformat/mov.c in FFmpeg 3.3.3, a DoS in read_tfra() due to lack of
an EOF (End of File) check might cause huge CPU and memory consumption.
When a crafted MOV file, which claims a large “item_count” field in the
header but does not contain sufficient backing data, is provided, the loop
would consume huge CPU and memory resources, since there is no EOF check
inside the loop.