ghsa-j2cm-6mgm-v7v4
Vulnerability from github
Published
2022-05-13 01:05
Modified
2022-05-13 01:05
Severity
Details
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": [],
"aliases": [
"CVE-2019-3887"
],
"database_specific": {
"cwe_ids": [
"CWE-863"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-04-09T16:29:00Z",
"severity": "MODERATE"
},
"details": "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\u0027s APIC register values via L2 guest, when \u0027virtualize x2APIC mode\u0027 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.",
"id": "GHSA-j2cm-6mgm-v7v4",
"modified": "2022-05-13T01:05:21Z",
"published": "2022-05-13T01:05:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3887"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2703"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2741"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2019-3887"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1695044"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3979-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3980-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3980-2"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107850"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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