This script is Copyright (C) 2016 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The Xen Project reports :
x86 HVM guests running with shadow paging use a subset of the x86
emulator to handle the guest writing to its own pagetables. There are
situations a guest can provoke which result in exceeding the space
allocated for internal state.
A malicious HVM guest administrator can cause Xen to fail a bug check,
causing a denial of service to the host.
See also :
Update the affected package.
Risk factor :
Low / CVSS Base Score : 1.5