Asterisk is a complete PBX in software. It runs on Linux and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in three protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware.
|OS||OS Version||Package Name||Package Version|
Digium Asterisk Multiple Products IAX2 Handshake Denial of Service (CVE-2008-1897)
AST-2008-006 - 3-way handshake in IAX2 incomplete
Asterisk IAX2 calls spoofing
Fedora Update for asterisk FEDORA-2008-3390
Fedora Update for asterisk FEDORA-2008-3365
asterisk - denial of service