This script is Copyright (C) 2017 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The Xen Project reports :
Unprivileged guests may be able to stall progress of the control
domain or driver domain, possibly leading to a Denial of Service (DoS)
of the entire host.
See also :
Update the affected package.
Risk factor :
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