{"id":"UBUNTU-CVE-2014-8595","details":"arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.","modified":"2026-04-22T09:35:36.642443Z","published":"2014-11-19T18:59:00Z","upstream":["CVE-2014-8595"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-8595"},{"type":"REPORT","url":"http://xenbits.xen.org/xsa/advisory-110.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2014-8595"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xen@4.4.1-0ubuntu0.14.04.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-0ubuntu0.14.04.2"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libxen-4.4","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"libxen-ocaml","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"libxenstore3.0","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-hypervisor-4.1-amd64","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-hypervisor-4.3-amd64","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-hypervisor-4.3-armhf","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-hypervisor-4.4-amd64","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-hypervisor-4.4-arm64","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-hypervisor-4.4-armhf","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-system-amd64","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-system-arm64","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-system-armhf","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-utils-4.4","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xen-utils-common","binary_version":"4.4.1-0ubuntu0.14.04.2"},{"binary_name":"xenstore-utils","binary_version":"4.4.1-0ubuntu0.14.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2014/UBUNTU-CVE-2014-8595.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"medium"}]}