This script is Copyright (C) 2014 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
Albert Aastals Cid reports :
krfb embeds libvncserver which embeds liblzo2, it contains various
flaws that result in integer overflow problems.
This potentially allows a malicious application to create a possible
denial of service or code execution. Due to the need to exploit
precise details of the target architecture and threading it is
unlikely that remote code execution can be achieved in practice.
See also :
Update the affected package.
Risk factor :