Xen through 4.8.x mishandles the "contains segment descriptors" property during GNTTABOP_transfer (aka guest transfer) operations, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-214.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxen-4.4" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxen-4.4-dbgsym" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxen-dev" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxen-ocaml" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxen-ocaml-dbgsym" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxen-ocaml-dev" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxenstore3.0" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "libxenstore3.0-dbgsym" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-hypervisor-4.1-amd64" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-hypervisor-4.3-amd64" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-hypervisor-4.3-armhf" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-hypervisor-4.4-amd64" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-hypervisor-4.4-arm64" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-hypervisor-4.4-armhf" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-system-amd64" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-system-arm64" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-system-armhf" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-utils-4.4" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-utils-4.4-dbgsym" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xen-utils-common" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xenstore-utils" }, { "binary_version": "4.4.2-0ubuntu0.14.04.11", "binary_name": "xenstore-utils-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "libxen-4.6" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "libxen-4.6-dbgsym" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "libxen-dev" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "libxenstore3.0" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "libxenstore3.0-dbgsym" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.4-amd64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.4-arm64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.4-armhf" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.5-amd64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.5-arm64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.5-armhf" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.6-amd64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.6-arm64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-hypervisor-4.6-armhf" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-system-amd64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-system-arm64" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-system-armhf" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-utils-4.6" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-utils-4.6-dbgsym" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xen-utils-common" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xenstore-utils" }, { "binary_version": "4.6.5-0ubuntu1.1", "binary_name": "xenstore-utils-dbgsym" } ] }