{"id":"UBUNTU-CVE-2015-2151","details":"The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.","modified":"2026-04-22T10:11:12.337180Z","published":"2015-03-12T14:59:00Z","upstream":["CVE-2015-2151"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-2151"},{"type":"REPORT","url":"http://xenbits.xen.org/xsa/advisory-123.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-2151"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xen@4.4.1-0ubuntu0.14.04.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-0ubuntu0.14.04.4"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libxen-4.4","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"libxen-ocaml","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"libxenstore3.0","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-hypervisor-4.1-amd64","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-hypervisor-4.3-amd64","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-hypervisor-4.3-armhf","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-hypervisor-4.4-amd64","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-hypervisor-4.4-arm64","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-hypervisor-4.4-armhf","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-system-amd64","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-system-arm64","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-system-armhf","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-utils-4.4","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xen-utils-common","binary_version":"4.4.1-0ubuntu0.14.04.4"},{"binary_name":"xenstore-utils","binary_version":"4.4.1-0ubuntu0.14.04.4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-2151.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"medium"}]}