This script is Copyright (C) 2010-2015 Tenable Network Security, Inc.
The remote Fedora host is missing a security update.
Bug 603915 - znc: NULL pointer dereference flaw leads to segfault
under certain conditions A Debian bug report  noted that ZNC would
segfault under certain conditions, such as clicking 'traffic' in the
webadmin pages or issuing the traffic command on the /znc shell. This
has been corrected upstream . This vulnerability was reported
against 0.090 which is the version that Fedora provides. 
Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
See also :
Update the affected znc package.
Risk factor :
Low / CVSS Base Score : 3.5
CVSS Temporal Score : 2.9
Public Exploit Available : true