SUSE-SU-2017:1812-1 Security update for xen

This update for xen fixes several issues. These security issues were fixed: - CVE-2017-10911: blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests XSA-216, bsc1042863 - CVE-2017-10912: Page transfer might have...