https://tsecurity.de/de/1553269/IT+Reverse+Engineering/Sicherheitsl%C3%BCcken/CVE-2015-8218+%7C+FFmpeg+up+to+2.8.1+CCITT+FAX+Data+libavcodec%2Ffaxcompr.c+decode_uncompressed+input+validation+%28BID-77640+%2F+ID+87178%29/