Michele Spagnuolo of the Google Security Team dicovered two heap-based buffer overflows in SoX, the Swiss Army knife of sound processing programs. A specially crafted wav file could cause an application using SoX to crash or, possibly, execute arbitrary code.
For the stable distribution (wheezy), these problems have been fixed in version 14.4.0-3+deb7u1.
For the upcoming stable distribution (jessie) and the unstable distribution (sid), these problems will be fixed soon.
We recommend that you upgrade your sox packages.