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{
"id" : "CVE-2016-9777" ,
"sourceIdentifier" : "secalert@redhat.com" ,
"published" : "2016-12-28T07:59:00.510" ,
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"lastModified" : "2023-05-16T11:09:07.767" ,
"vulnStatus" : "Analyzed" ,
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"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" : {
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"version" : "3.1" ,
"vectorString" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H" ,
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"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
}
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"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 ,
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}
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"description" : [
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"lang" : "en" ,
"value" : "CWE-125"
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"versionStartIncluding" : "4.8" ,
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"references" : [
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"url" : "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755" ,
"source" : "secalert@redhat.com" ,
"tags" : [
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{
"url" : "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Release Notes"
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} ,
{
"url" : "http://www.openwall.com/lists/oss-security/2016/12/02/2" ,
"source" : "secalert@redhat.com" ,
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{
"url" : "http://www.securityfocus.com/bid/94640" ,
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"source" : "secalert@redhat.com" ,
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} ,
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"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1400804" ,
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"url" : "https://github.com/torvalds/linux/commit/81cdb259fb6d8c1c4ecfeea389ff5a73c07f5755" ,
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