tcl-snack: code execution

Two vulnerabilities have been discovered in Snack Sound Toolkit, which can be exploited by malicious people to compromise a user's system.

The vulnerabilities are caused due to missing boundary checks in the "GetWavHeader()" function (generic/jkSoundFile.c) when parsing either format sub-chunks or unknown sub-chunks. This can be exploited to cause a heap-based buffer overflow via specially crafted WAV files with overly large chunk sizes specified.

Successful exploitation may allow execution of arbitrary code.