Provide references for CVE-2018-6621.
Where can I find more information about CVE-2018-6621?
References are available at: http://www.securityfocus.com/bid/102950, https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654b, https://www.debian.org/security/2018/dsa-4249, https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html, https://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6c.