CVE-2013-6693
The MLDP implementation in Cisco IOS 15.3(3)S and earlier on 7600 routers, when many VRFs are configured, allows remote attackers to cause a denial of service (chunk corruption and device reload) by establishing many multicast flows, aka Bug ID CSCue22345.
Date published : 2013-11-21
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6693
http://tools.cisco.com/security/center/viewAlert.x?alertId=31861