The (1) ioportread and (2) ioportwrite functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "xenstore-utils-dbgsym": "4.4.2-0ubuntu0.14.04.9", "libxenstore3.0": "4.4.2-0ubuntu0.14.04.9", "libxen-4.4": "4.4.2-0ubuntu0.14.04.9", "libxenstore3.0-dbgsym": "4.4.2-0ubuntu0.14.04.9", "libxen-ocaml-dev": "4.4.2-0ubuntu0.14.04.9", "libxen-dev": "4.4.2-0ubuntu0.14.04.9", "xen-utils-4.4-dbgsym": "4.4.2-0ubuntu0.14.04.9", "xen-hypervisor-4.3-amd64": "4.4.2-0ubuntu0.14.04.9", "xen-hypervisor-4.3-armhf": "4.4.2-0ubuntu0.14.04.9", "xen-system-amd64": "4.4.2-0ubuntu0.14.04.9", "xen-hypervisor-4.4-arm64": "4.4.2-0ubuntu0.14.04.9", "libxen-ocaml": "4.4.2-0ubuntu0.14.04.9", "xenstore-utils": "4.4.2-0ubuntu0.14.04.9", "xen-system-armhf": "4.4.2-0ubuntu0.14.04.9", "xen-hypervisor-4.1-amd64": "4.4.2-0ubuntu0.14.04.9", "xen-hypervisor-4.4-armhf": "4.4.2-0ubuntu0.14.04.9", "xen-hypervisor-4.4-amd64": "4.4.2-0ubuntu0.14.04.9", "xen-utils-common": "4.4.2-0ubuntu0.14.04.9", "libxen-ocaml-dbgsym": "4.4.2-0ubuntu0.14.04.9", "xen-utils-4.4": "4.4.2-0ubuntu0.14.04.9", "libxen-4.4-dbgsym": "4.4.2-0ubuntu0.14.04.9", "xen-system-arm64": "4.4.2-0ubuntu0.14.04.9" } ] }