Array index vulnerability in Speex 1.1.12 and earlier, as used in libfishsound 0.9.0 and earlier, including Illiminable DirectShow Filters and Annodex Plugins for Firefox, xine-lib before 1.1.12, and many other products, allows remote attackers to execute arbitrary code via a header structure containing a negative offset, which is used to dereference a function pointer.

A Divide by Zero vulnerability in the function static int readsamples of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file.