flac123 version 0.0.9, also known as flac-tools, is vulnerable to a buffer overflow in vorbis comment parsing. This allows for the execution of arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/57372/flac123-overflow.txt
Source: https://packetstormsecurity.com/files/57372/flac123-overflow.txt.html