vorbis-tools -- Speex header processing vulnerability

Secunia reports:

A vulnerability has been reported in vorbis-tools,
which can potentially be exploited by malicious people
to compromise a user’s system.
The vulnerability is caused due to an input validation
error when processing Speex headers, which can be
exploited via a specially crafted Speex stream containing
a negative “modeID” field in the header.
Successful exploitation may allow execution of arbitrary
code.