Nokia N95 cell phone with RM-159 12.0.013 firmware allows remote attackers to cause a denial of service (device inoperability) via a SIP INVITE message accompanied by an immediately subsequent SIP CANCEL message, followed by a second SIP INVITE message in a different session.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2007-6338
http://www.vupen.com/english/advisories/2007/4113
http://www.securityfocus.com/bid/26726
http://lists.grok.org.uk/pipermail/full-disclosure/2007-December/058839.html