CVE-2008-3157
Nortel SIP Multimedia PC Client 4.x MCS5100 and MCS5200 does not limit the number of concurrent sessions, which allows attackers to cause a denial of service (resource consumption) via a large number of sessions.
Date published : 2008-07-11
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=738961