CVE-2017-16803: Improper Restriction of Operations within the Bounds of a Memory Buffer

In Libav through 11.11 and 12.x through 12.1, the smackerdecodetree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service bitstream.c:buildtable out-of-bounds read and application crash via a crafted Smacker stream...