CVE-2018-19966

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4D26686-78AC-4689-A646-2C53A160FFE4", "versionEndIncluding": "4.11.1", "versionStartIncluding": "4.11.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595."}, {"lang": "es", "value": "Se ha descubierto un problema en Xen hasta las versiones 4.11.x que permite que usuarios invitados x86 del sistema operativo provoquen una denegaci\u00f3n de servicio (cierre inesperado del host del sistema operativo) u obtengan privilegios del host del sistema operativo debido a un conflicto de interpretaci\u00f3n para una estructura de datos de uni\u00f3n asociados con p\u00e1ginas shadow. NOTA: este problema existe debido a una soluci\u00f3n incorrecta para CVE-2017-15595."}], "id": "CVE-2018-19966", "lastModified": "2026-06-17T01:50:12.280", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-12-08T04:29:00.467", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/106182"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2019/dsa-4369"}, {"source": "cve@mitre.org", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "url": "https://xenbits.xen.org/xsa/advisory-280.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/106182"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2019/dsa-4369"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "url": "https://xenbits.xen.org/xsa/advisory-280.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-436"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Prgmr.com security team as the original reporter.", "bugzilla": {"description": "xen: Conflicts with shadow paging due to XSA-240 incomplete fix (XSA-280)", "id": "1652235", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1652235"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.1", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595."], "name": "CVE-2018-19966", "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": "2018-11-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-19966\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-19966"], "threat_severity": "Moderate"}

{}