CVE-2016-3157

{"id": "CVE-2016-3157", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2016-04-12T16:59:02.423", "references": [{"url": "http://www.debian.org/security/2016/dsa-3607", "source": "cve@mitre.org"}, {"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html", "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/84594", "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1035308", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2968-1", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2968-2", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2969-1", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2970-1", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2971-1", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2971-2", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2971-3", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2996-1", "source": "cve@mitre.org"}, {"url": "http://www.ubuntu.com/usn/USN-2997-1", "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/advisory-171.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-264"}]}], "descriptions": [{"lang": "en", "value": "The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access."}, {"lang": "es", "value": "La funci\u00f3n __switch_to en arch/x86/kernel/process_64.c en el kernel de Linux no sustituye correctamente el conmutador de contexto IOPL en invitados 64-bit PV Xen, lo que permite a usuarios locales del SO invitado obtener privilegios, provocar una denegaci\u00f3n de servicio (ca\u00edda del SO invitado), u obtener informaci\u00f3n sensible aprovechando el puerto de acceso I/O."}], "lastModified": "2016-12-03T03:26:39.553", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "550223A9-B9F1-440A-8C25-9F0F76AF7301"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}