Probably worth a read...
http://www.openssh.com/txt/release-7.1p2
Important SSH patch coming soon. For now, everyone on all operating systems, please do the following:
Add undocumented "UseRoaming no" to ssh_config or use "-oUseRoaming=no" to prevent upcoming #openssh client bug CVE-2016-0777. More later.
echo "UseRoaming no" >> /etc/ssh/ssh_config