CVE-2019-3887

{"id": "CVE-2019-3887", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.7, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 5.3, "exploitabilityScore": 0.8}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.6, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 1.1}]}, "published": "2019-04-09T16:29:01.990", "references": [{"url": "http://www.securityfocus.com/bid/107850", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2019:2703", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2019:2741", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/", "source": "secalert@redhat.com"}, {"url": "https://usn.ubuntu.com/3979-1/", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://usn.ubuntu.com/3980-1/", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://usn.ubuntu.com/3980-2/", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-863"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue."}, {"lang": "es", "value": "Se encontr\u00f3 un error en la forma en que el hipervisor KVM manejaba el acceso a x2APIC Machine Specific Rregister (MSR) con la virtualizaci\u00f3n anidada (=1) habilitada. En este caso, el invitado L1 podr\u00eda acceder a los valores de registro APIC de L0 a trav\u00e9s del invitado L2, cuando `virtualize x2APIC mode' est\u00e1 habilitado. Un invitado podr\u00eda utilizar este fallo para bloquear el n\u00facleo del host, lo que provocar\u00eda un problema de denegaci\u00f3n de servicio. El kernel, versi\u00f3n 4.16 y posteriores son vulnerables a este problema."}], "lastModified": "2023-02-12T23:38:42.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "70C736CC-2D30-4710-A0AE-3A146DF7C1D1", "versionStartIncluding": "4.16"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D100F7CE-FC64-4CC6-852A-6136D72DA419"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CD783B0C-9246-47D9-A937-6144FE8BFF0F"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92BC9265-6959-4D37-BE5E-8C45E98992F8"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "831F0F47-3565-4763-B16F-C87B1FF2035E"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0E3F09B5-569F-4C58-9FCA-3C0953D107B5"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CBF9BCF3-187F-410A-96CA-9C47D3ED6924"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5CB3640-F55B-4127-875A-2F52D873D179"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77C61DDC-81F3-4E2D-9CAA-17A256C85443"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B6B0DA79-DF12-4418-B075-F048C9E2979A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B92409A9-0D6B-4B7E-8847-1B63837D201F"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C5C5860E-9FEB-4259-92FD-A85911E2F99E"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6897676D-53F9-45B3-B27F-7FF9A4C58D33"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E28F226A-CBC7-4A32-BE58-398FA5B42481"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B09ACF2D-D83F-4A86-8185-9569605D8EE1"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AC10D919-57FD-4725-B8D2-39ECB476902F"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}