The VC-2 Video Compression encoder in FFmpeg 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because of incorrect buffer padding for non-Haar wavelets, related to libavcodec/vc2enc.c and libavcodec/vc2enc_dwt.c. https://nvd.nist.gov/vuln/detail/CVE-2017-16840
