Cisco Security Advisory – Cisco IOS Software contains a vulnerability that could allow an attacker to cause a Cisco IOS device to reload by remotely sending a crafted encryption packet.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81601/cisco-sa-20090923-tls.txt
Source: https://packetstormsecurity.com/files/81601/Cisco-Security-Advisory-20090923-tls.html