The av_color_primaries_name function in libavutil/pixdesc.c in FFmpeg 3.3.3 may return a NULL pointer depending on a value contained in a file, but callers do not anticipate this, as demonstrated by the avcodec_string function in libavcodec/utils.c, leading to a NULL pointer dereference. (It is also conceivable that there is security relevance for a NULL pointer dereference in av_color_primaries_name calls within the ffprobe command-line program.)
http://www.debian.org/security/2017/dsa-3996
http://www.securityfocus.com/bid/100704
https://github.com/FFmpeg/FFmpeg/commit/837cb4325b712ff1aab531bf41668933f61d75d2
https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2017-August/215198.html
Source: MITRE
Published: 2017-09-09
Updated: 2017-11-04
Type: CWE-476
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH