Cisco Security Advisory: A Cisco device running IOS and enabled for the Border Gateway Protocol (BGP) is vulnerable to a Denial of Service (DOS) attack from a malformed BGP packet.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/33568/cisco-sa-20040616-bgp.txt
Source: https://packetstormsecurity.com/files/33568/Cisco-Security-Advisory-20040616-bgp.html