Buffer overflow in the Session Initiation Protocol (SIP) User Access Client (UAC) message parsing module in Avaya one-X Desktop Edition 2.1.0.70 and earlier allows remote attackers to cause a denial of service (call reception outage) via a malformed SIP message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35072
https://exchange.xforce.ibmcloud.com/vulnerabilities/34952
http://www.sipera.com/index.php?action=resources%2Cthreat_advisory&tid=295&
http://www.securityfocus.com/bid/24530
http://support.avaya.com/elmodocs2/security/ASA-2007-241.htm