Cisco Security Advisory – An industry-wide vulnerability exists in the Transport Layer Security (TLS) protocol that could impact any Cisco product that uses any version of TLS and SSL. The vulnerability exists in how the protocol handles session renegotiation and exposes users to a potential man-in-the-middle attack.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/82657/cisco-sa-20091109-tls.txt
Source: https://packetstormsecurity.com/files/82657/Cisco-Security-Advisory-20091109-tls.html