Cisco IOS 9.x, 10.x, 11.x, and 12.x and IOS XR 2.0.x, 3.0.x, and 3.2.x allows remote attackers to cause a denial of service or execute arbitrary code via a crafted IP option in the IP header in a (1) ICMP, (2) PIMv2, (3) PGM, or (4) URD packet.
osvdb.org/32092
secunia.com/advisories/23867
securitytracker.com/id?1017555
www.cisco.com/en/US/products/products_security_advisory09186a00807cb157.shtml
www.kb.cert.org/vuls/id/341288
www.securityfocus.com/bid/22211
www.us-cert.gov/cas/techalerts/TA07-024A.html
www.vupen.com/english/advisories/2007/0329
exchange.xforce.ibmcloud.com/vulnerabilities/31725
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5666