asterisk users - Sep 2010 - TLS re-negotiation attack on SIP/TLS of Asterisk?

Hi all,

i read about the TLS-RENEGOTIATION vulnerability:

http://www.educatedguesswork.org/2009/11/understanding_the_tls_renegoti.html
http://www.sslshopper.com/article-ssl-and-tls-renegotiation-vulnerability-discovered.html
www.phonefactor.com/sslgapdocs/Renegotiating_TLS.pdf

Does the Asterisk 1.6/1.8 SIP/TLS implementation suffer from the TLS
Renegotiation vulnerability or the TLS-renegotiation it's disabled by
default, in how OpenSSL is used?

Fabio Pietrosanti