{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-11-22T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-06-30T16:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "94471", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/94471"}, {"name": "GLSA-201612-56", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/201612-56"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://support.citrix.com/article/CTX218775"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://xenbits.xen.org/xsa/advisory-191.html"}, {"name": "1037340", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1037340"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2016-9386", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "94471", "refsource": "BID", "url": "http://www.securityfocus.com/bid/94471"}, {"name": "GLSA-201612-56", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/201612-56"}, {"name": "https://support.citrix.com/article/CTX218775", "refsource": "CONFIRM", "url": "https://support.citrix.com/article/CTX218775"}, {"name": "http://xenbits.xen.org/xsa/advisory-191.html", "refsource": "CONFIRM", "url": "http://xenbits.xen.org/xsa/advisory-191.html"}, {"name": "1037340", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1037340"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T02:50:37.602Z"}, "title": "CVE Program Container", "references": [{"name": "94471", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/94471"}, {"name": "GLSA-201612-56", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/201612-56"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://support.citrix.com/article/CTX218775"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://xenbits.xen.org/xsa/advisory-191.html"}, {"name": "1037340", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1037340"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2016-9386", "datePublished": "2017-01-23T21:00:00.000Z", "dateReserved": "2016-11-17T00:00:00.000Z", "dateUpdated": "2024-08-06T02:50:37.602Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*", "matchCriteriaId": "5FCF191B-971A-4945-AB14-08091689BE2F", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:xenserver:6.2.0:*:*:*:*:*:*:*", "matchCriteriaId": "BCEA97B9-A443-4F87-81B4-B3F0E94AC18E", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:xenserver:6.5:*:*:*:*:*:*:*", "matchCriteriaId": "56434D13-7A7B-495C-A135-2688C706A065", "vulnerable": true}, {"criteria": "cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "405F950F-0772-41A3-8B72-B67151CC1376", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*", "matchCriteriaId": "C2B9CCC2-BAC5-4A65-B8D4-4B71EBBA0C2F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values."}, {"lang": "es", "value": "El emulador x86 en Xen no trata adecuadamente los segmentos NULL de x86 como inutilizable el acceso a memoria, lo que podr\u00eda permitir a usuarios locales del HVM invitado obtener privilegios a trav\u00e9s de vectores que implican valores de base/l\u00edmite \"inesperados\"."}], "id": "CVE-2016-9386", "lastModified": "2025-04-20T01:37:25.860", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-01-23T21:59:02.957", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/94471"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1037340"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://xenbits.xen.org/xsa/advisory-191.html"}, {"source": "cve@mitre.org", "url": "https://security.gentoo.org/glsa/201612-56"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://support.citrix.com/article/CTX218775"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/94471"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1037340"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://xenbits.xen.org/xsa/advisory-191.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/201612-56"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://support.citrix.com/article/CTX218775"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Andrew Cooper (Citrix) as the original reporter.", "bugzilla": {"description": "xen: x86 null segments not always treated as unusable (XSA-191)", "id": "1392932", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1392932"}, "csaw": false, "cvss": {"cvss_base_score": "6.0", "cvss_scoring_vector": "AV:N/AC:M/Au:S/C:P/I:P/A:P", "status": "draft"}, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving \"unexpected\" base/limit values."], "name": "CVE-2016-9386", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2016-11-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-9386\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-9386\nhttp://xenbits.xen.org/xsa/advisory-191.html"], "threat_severity": "Moderate"}

{}