This script is Copyright (C) 2013-2017 Tenable Network Security, Inc.
The remote Mac OS X host contains a mail client that is potentially
affected by a code execution vulnerability.
The installed version of Thunderbird ESR is prior to 17.0.11 and is,
therefore, potentially affected by a code execution vulnerability
related to the function 'Null_Cipher' in the file 'ssl/ssl3con.c' and
handling handshake packets.
See also :
Upgrade to Thunderbird ESR 17.0.11 or later.
Risk factor :
High / CVSS Base Score : 9.3
CVSS Temporal Score : 6.9
Public Exploit Available : false