CVE-2007-5639 Information

Description

The Nortel UNIStim IP Softphone 2050 IP Phone 1140E and other Nortel IP Phone Mobile Voice Client and WLAN Handsets products allow remote attackers to cause a denial of service (device hang) via a flood of Mute and UnMute messages that have a spoofed source IP address for the Signaling Server.

Reference

http://securityreason.com/securityalert/3273 http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715 http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txt http://www.securityfocus.com/archive/1/482480/100/0/threaded http://www.securityfocus.com/bid/26122 https://exchange.xforce.ibmcloud.com/vulnerabilities/37253