2023-05-16 16:11:44 +02:00

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{
"id": "CVE-2016-9777",
"sourceIdentifier": "secalert@redhat.com",
"published": "2016-12-28T07:59:00.510",
"lastModified": "2023-05-16T11:09:07.767",
"vulnStatus": "Analyzed",
"descriptions": [
{
"lang": "en",
"value": "KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not properly restrict the VCPU index, which allows guest OS users to gain host OS privileges or cause a denial of service (out-of-bounds array access and host OS crash) via a crafted interrupt request, related to arch/x86/kvm/ioapic.c and arch/x86/kvm/ioapic.h."
},
{
"lang": "es",
"value": "KVM en el kernel de Linux en versiones anteriores a 4.8.12, cuando se habilita I/O APIC, no restringe adecuadamente el \u00edndice VCPU, lo que permite a usuarios de SO invitados obtener privilegios del SO de anfitri\u00f3n o provocar una denegaci\u00f3n de servicio (acceso al array fuera de rango y ca\u00edda del SO anfitri\u00f3n) a trav\u00e9s de una petici\u00f3n interrumpida manipulada, relacionado con arch/x86/kvm/ioapic.c y arch/x86/kvm/ioapic.h."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"attackVector": "LOCAL",
"attackComplexity": "HIGH",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"exploitabilityScore": 1.1,
"impactScore": 6.0
}
],
"cvssMetricV2": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
"accessVector": "LOCAL",
"accessComplexity": "MEDIUM",
"authentication": "NONE",
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.9
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 3.4,
"impactScore": 10.0,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.8",
"versionEndExcluding": "4.8.12",
"matchCriteriaId": "DC8CAAEA-FB80-41CC-BECF-346FCF47EFF1"
}
]
}
]
}
],
"references": [
{
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755",
"source": "secalert@redhat.com",
"tags": [
"Patch",
"Vendor Advisory"
]
},
{
"url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12",
"source": "secalert@redhat.com",
"tags": [
"Release Notes"
]
},
{
"url": "http://www.openwall.com/lists/oss-security/2016/12/02/2",
"source": "secalert@redhat.com",
"tags": [
"Mailing List",
"Patch"
]
},
{
"url": "http://www.securityfocus.com/bid/94640",
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1400804",
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking"
]
},
{
"url": "https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755",
"source": "secalert@redhat.com",
"tags": [
"Patch",
"Vendor Advisory"
]
}
]
}