SUSE-SU-2017:1081-1 Security update for xen

This update for xen fixes the following issues: These security issues were fixed: - CVE-2017-7228: Broken check in memoryexchange permited PV guest breakout bsc1030442. - XSA-206: Unprivileged guests issuing writes to xenstore were able to stall progress of the control domain or driver domain,...