CVE-2008-3809
Cisco IOS 12.0 through 12.4 on Gigabit Switch Router (GSR) devices (aka 12000 Series routers) allows remote attackers to cause a denial of service (device crash) via a malformed Protocol Independent Multicast (PIM) packet.
Date published : 2008-09-26
http://www.securityfocus.com/bid/31356
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a01491.shtml