CVE-2017-14171: 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…

PriorityP427medium6.5CVSS 3.0

AVNACLPRNUIRSUCNINAH

EPSS

1.77%

75.8th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	ffmpeg	< ffmpeg 7:3.3.4-1 (bookworm)	ffmpeg 7:3.3.4-1 (bookworm)
ffmpeg	ffmpeg	—	—
ffmpeg	ffmpeg	>= 0 < 7:3.3.4-1	7:3.3.4-1
ffmpeg	ffmpeg	>= 0 < 7:3.3.4-1	7:3.3.4-1
ffmpeg	ffmpeg	>= 0 < 7:3.3.4-1	7:3.3.4-1
ffmpeg	ffmpeg	>= 0 < 7:3.3.4-1	7:3.3.4-1

CVSS provenance

nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvdv2.07.1HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C

osv6.5MEDIUM

vendor_debian6.5LOW

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