{"id":"UBUNTU-CVE-2016-7154","details":"Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.","modified":"2026-04-22T11:33:13.167230Z","published":"2016-09-21T14:25:00Z","upstream":["CVE-2016-7154"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7154"},{"type":"REPORT","url":"http://xenbits.xen.org/xsa/advisory-188.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-7154"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xen@4.4.2-0ubuntu0.14.04.7?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.2-0ubuntu0.14.04.7"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libxen-4.4","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"libxen-ocaml","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"libxenstore3.0","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-hypervisor-4.1-amd64","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-hypervisor-4.3-amd64","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-hypervisor-4.3-armhf","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-hypervisor-4.4-amd64","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-hypervisor-4.4-arm64","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-hypervisor-4.4-armhf","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-system-amd64","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-system-arm64","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-system-armhf","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-utils-4.4","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xen-utils-common","binary_version":"4.4.2-0ubuntu0.14.04.7"},{"binary_name":"xenstore-utils","binary_version":"4.4.2-0ubuntu0.14.04.7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7154.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}