Xen 3.x, possibly before 3.1.2, when running on IA64 systems, does not check the RID value for mov_to_rr, which allows a VTi domain to read memory of other domains.Referenceshttp://osvdb.org/41341http://www.redhat.com/support/errata/RHSA-2008-0154.htmlhttp://lists.xensource.com/archives/html/xen-announce/2007-11/msg00000.htmlhttp://secunia.com/advisories/27915http://secunia.com/advisories/29236https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9471http://lists.xensource.com/archives/html/xen-ia64-devel/2007-10/msg00189.htmlhttp://www.securityfocus.com/bid/26716
