Cisco Security Advisory 20040304 – The CSS 11000 Series Content Services Switches are vulnerable to a Denial of Service (DoS) attack caused by malformed UDP packets received over the management port.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/32816/cisco-sa-20040304-css.txt
Source: https://packetstormsecurity.com/files/32816/Cisco-Security-Advisory-20040304-css.html