{"id":"CVE-2019-3887","state":"PUBLISHED","title":"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 r","description":"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.","publishedAt":"2019-04-09T00:00:00.000Z","updatedAt":"2024-08-04T19:19:18.713Z","severity":{"score":6.7,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H","source":"redhat"},"assigner":"redhat","products":["The Linux Foundation Kernel"],"affected":[{"vendor":"The Linux Foundation","product":"Kernel","versions":[{"version":"from 4.16","status":"affected"}]}],"references":["http://www.securityfocus.com/bid/107850","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/","https://usn.ubuntu.com/3980-1/","https://usn.ubuntu.com/3979-1/","https://usn.ubuntu.com/3980-2/","https://access.redhat.com/errata/RHSA-2019:2703","https://access.redhat.com/errata/RHSA-2019:2741","https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T19:45:59.128Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/3xxx/CVE-2019-3887.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-3887","state":"PUBLISHED","datePublished":"2019-04-09T00:00:00.000Z","dateUpdated":"2024-08-04T19:19:18.713Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2019-01-03T00:00:00.000Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"The Linux Foundation","product":"Kernel","versions":[{"version":"from 4.16","status":"affected"}]}],"references":[{"url":"http://www.securityfocus.com/bid/107850","name":"107850","tags":["vdb-entry"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/","name":"FEDORA-2019-94dc902948","tags":["vendor-advisory"]},{"url":"https://usn.ubuntu.com/3980-1/","name":"USN-3980-1","tags":["vendor-advisory"]},{"url":"https://usn.ubuntu.com/3979-1/","name":"USN-3979-1","tags":["vendor-advisory"]},{"url":"https://usn.ubuntu.com/3980-2/","name":"USN-3980-2","tags":["vendor-advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2019:2703","name":"RHSA-2019:2703","tags":["vendor-advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2019:2741","name":"RHSA-2019:2741","tags":["vendor-advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887"}],"metrics":[{"cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"HIGH","baseScore":6.7,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","type":"CWE","lang":"en","description":"CWE-863"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2022-10-07T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.securityfocus.com/bid/107850","name":"107850","tags":["vdb-entry","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/","name":"FEDORA-2019-94dc902948","tags":["vendor-advisory","x_transferred"]},{"url":"https://usn.ubuntu.com/3980-1/","name":"USN-3980-1","tags":["vendor-advisory","x_transferred"]},{"url":"https://usn.ubuntu.com/3979-1/","name":"USN-3979-1","tags":["vendor-advisory","x_transferred"]},{"url":"https://usn.ubuntu.com/3980-2/","name":"USN-3980-2","tags":["vendor-advisory","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2019:2703","name":"RHSA-2019:2703","tags":["vendor-advisory","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2019:2741","name":"RHSA-2019:2741","tags":["vendor-advisory","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T19:19:18.713Z"}}]}}}