CVE-2016-3158

{"id": "CVE-2016-3158", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 1.7, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.1, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 3.8, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.0}]}, "published": "2016-04-13T16:59:18.350", "references": [{"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://support.citrix.com/article/CTX209443", "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2016/dsa-3554", "source": "cve@mitre.org"}, {"url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/85714", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1035435", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/advisory-172.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/xsa172-4.3.patch", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/xsa172.patch", "tags": ["Patch"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-284"}]}], "descriptions": [{"lang": "en", "value": "The xrstor function in arch/x86/xstate.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076."}, {"lang": "es", "value": "La funci\u00f3n xrstor en arch/x86/xstate.c en Xen 4.x no maneja correctamente escrituras al bit FSW.ES hardware cuando se ejecuta en procesadores AMD64, lo que permite a usuarios locales del SO invitado obtener informaci\u00f3n sensible del contenido de registro de otro invitado aprovechando una excepci\u00f3n pendiente y bits de m\u00e1scara. NOTA: esta vulnerabilidad existe por una soluci\u00f3n incorrecta para CVE-2013-2076."}], "lastModified": "2016-12-03T03:26:40.820", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C014033-2C0A-4484-9390-1C68583957DD", "versionEndIncluding": "4.4.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "253C303A-E577-4488-93E6-68A8DD942C38"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E79AB8DD-C907-4038-A931-1A5A4CFB6A5B"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C2D62B2C-40E5-41B7-9DAA-029BCD079054"}, {"criteria": "cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4BA58099-26F7-4B01-B9FC-275F012FE9C6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}