{"id":"UBUNTU-CVE-2016-9637","details":"The (1) ioport_read and (2) ioport_write 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.","modified":"2026-04-22T11:48:22.467902Z","published":"2017-02-17T02:59:00Z","upstream":["CVE-2016-9637"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-9637"},{"type":"REPORT","url":"https://xenbits.xen.org/xsa/advisory-199.html"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/12/06/4"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-9637"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xen@4.4.2-0ubuntu0.14.04.9?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.2-0ubuntu0.14.04.9"}]}],"versions":["4.3.0-1ubuntu1","4.3.0-1ubuntu2","4.3.0-1ubuntu3","4.3.0-1ubuntu4","4.3.0-1ubuntu5","4.4.0-0ubuntu3","4.4.0-0ubuntu4","4.4.0-0ubuntu5","4.4.0-0ubuntu5.1","4.4.0-0ubuntu5.2","4.4.1-0ubuntu0.14.04.1","4.4.1-0ubuntu0.14.04.2","4.4.1-0ubuntu0.14.04.3","4.4.1-0ubuntu0.14.04.4","4.4.1-0ubuntu0.14.04.5","4.4.1-0ubuntu0.14.04.6","4.4.2-0ubuntu0.14.04.1","4.4.2-0ubuntu0.14.04.2","4.4.2-0ubuntu0.14.04.3","4.4.2-0ubuntu0.14.04.4","4.4.2-0ubuntu0.14.04.5","4.4.2-0ubuntu0.14.04.6","4.4.2-0ubuntu0.14.04.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libxen-4.4","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"libxen-ocaml","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"libxenstore3.0","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-hypervisor-4.1-amd64","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-hypervisor-4.3-amd64","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-hypervisor-4.3-armhf","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-hypervisor-4.4-amd64","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-hypervisor-4.4-arm64","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-hypervisor-4.4-armhf","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-system-amd64","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-system-arm64","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-system-armhf","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-utils-4.4","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xen-utils-common","binary_version":"4.4.2-0ubuntu0.14.04.9"},{"binary_name":"xenstore-utils","binary_version":"4.4.2-0ubuntu0.14.04.9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9637.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}