CVE-2007-4430
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.
Date published : 2007-08-20
http://www.securityfocus.com/bid/25352
http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html
