This script is Copyright (C) 2016 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The Xen Project reports :
Supervisor Mode Access Prevention is a hardware feature designed to
make an Operating System more robust, by raising a pagefault rather
than accidentally following a pointer into userspace. However,
legitimate accesses into userspace require whitelisting, and the
exception delivery mechanism for 32bit PV guests wasn't whitelisted.
A malicious 32-bit PV guest kernel can trigger a safety check,
crashing the hypervisor and causing a denial of service to other VMs
on the host.
See also :
Update the affected package.
Risk factor :
Medium / CVSS Base Score : 4.9