Denial of Service (DoS) Vulnerability in libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3

Denial of Service (DoS) Vulnerability in libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3

CVE-2017-14171 · HIGH Severity

AV:N/AC:M/AU:N/C:N/I:N/A:C

In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.

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