Nokia Gateway GPRS support node (GGSN) allows remote attackers to cause a denial of service (kernel panic) via a malformed IP packet with a 0xFF TCP option.
https://exchange.xforce.ibmcloud.com/vulnerabilities/12221
http://www.securityfocus.com/bid/7854
http://www.kb.cert.org/vuls/id/924812
http://www.atstake.com/research/advisories/2003/a060903-1.txt