The ff_id3v2_parse function in libavformat/id3v2.c in FFmpeg before 1.1 allows remote attackers to have an unspecified impact via ID3v2 header data, which triggers an out-of-bounds array access.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.