Buffer overflow in the Polycom SoundPoint IP 601 SIP phone with BootROM 3.0.x+ and SIP version 1.6.3.0067 allows remote attackers to cause a denial of service (device hang or reboot) via an INVITE message with a long Via header.
knowledgebase.polycom.com/KanisaPlatform/Publishing/927/11898_f.SAL_PUBLIC_1_2.html
osvdb.org/37610
secunia.com/advisories/25780
www.polycom.com/common/pw_item_show_doc/1%2C%2C7482%2C00.pdf
www.securityfocus.com/bid/24542
www.sipera.com/index.php?action=resources%2Cthreat_advisory&tid=272&
www.vupen.com/english/advisories/2007/2329