[VOIPSEC] Vulnerabilities in Asterisk

[Jake Opie]

Hi,

I am currently reading for my Masters degree in Computer Science and I am
looking at securing softswitches. What I am interested in is the
vulnerabilities found in Asterisk and have been only able to find 5
documented vulnerabilities. Are there more known vulnerabilities than 5? I
am looking for a formal list of these vulnerabilities. 

Below is a link to a pdf that I have written on the vulnerabilities in
Asterisk, SER and OpenH323 GateKeeper:
 
http://jake.rucus.net/Masters/images/stories/summary%20of%20known%20vulnerab
ilities%20for%20the%20main%20components%20of%20ilanga.pdf

Thanks for the help. 

Jake Opie