Secunia Security Advisory – Ubuntu has issued an update for speex. This fixes a vulnerability, which can potentially be exploited by malicious people to compromise an application using the library.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/66216/sa30104.txt
Source: https://packetstormsecurity.com/files/66216/Secunia-Security-Advisory-30104.html