CVE-2007-3349: Undefined Security Weakness

The Aastra 9112i SIP Phone with firmware 1.4.0.1048 and boot version 1.1.0.10 allows remote attackers to 1 cause a denial of service device freeze via a malformed SIP message of a certain length or 2 cause a denial of service continuous ring via a malformed SIP message of a certain other length...