This script is Copyright (C) 2017 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The Xen Project reports :
When doing bitblt copy backwards, qemu should negate the blit width.
This avoids an oob access before the start of video memory.
A malicious guest administrator can cause an out of bounds memory
access, possibly leading to information disclosure or privilege
See also :
Update the affected package.
Risk factor :