{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2019-3887",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "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."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-863",
                        "cweId": "CWE-863"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "The Linux Foundation",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Kernel",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "from 4.16"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://usn.ubuntu.com/3980-1/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3980-1/"
            },
            {
                "url": "https://usn.ubuntu.com/3980-2/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3980-2/"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2019:2703",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2019:2703"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2019:2741",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2019:2741"
            },
            {
                "url": "https://usn.ubuntu.com/3979-1/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3979-1/"
            },
            {
                "url": "http://www.securityfocus.com/bid/107850",
                "refsource": "MISC",
                "name": "http://www.securityfocus.com/bid/107850"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887"
            },
            {
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/",
                "refsource": "MISC",
                "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/"
            }
        ]
    },
    "impact": {
        "cvss": [
            {
                "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"
            }
        ]
    }
}