Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "libxen-4.6", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "libxen-4.6-dbgsym", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "libxen-dev", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "libxenstore3.0", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "libxenstore3.0-dbgsym", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.4-amd64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.4-arm64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.4-armhf", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.5-amd64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.5-arm64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.5-armhf", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.6-amd64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.6-arm64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-hypervisor-4.6-armhf", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-system-amd64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-system-arm64", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-system-armhf", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-utils-4.6", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-utils-4.6-dbgsym", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xen-utils-common", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xenstore-utils", "binary_version": "4.6.5-0ubuntu1.4" }, { "binary_name": "xenstore-utils-dbgsym", "binary_version": "4.6.5-0ubuntu1.4" } ] }