2023-04-24 12:24:31 +02:00
{
"id" : "CVE-2010-4255" ,
"sourceIdentifier" : "secalert@redhat.com" ,
"published" : "2011-01-25T01:00:01.393" ,
"lastModified" : "2018-10-10T20:07:52.833" ,
"vulnStatus" : "Modified" ,
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{
"lang" : "en" ,
"value" : "The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access."
} ,
{
"lang" : "es" ,
"value" : "La funci\u00f3n fixup_page_fault en arch/x86/traps.c en Xen v.4.0.1 y anteriores sobre plataformas 64-bit, cuando se activa la paravirtualizaci\u00f3n, no verifica que el modo kernel est\u00e1 usado para llamar a la funci\u00f3n handle_gdt_ldt_mapping_fault, lo que permite a los usuarios invitados del sistema operativo provocar una denegaci\u00f3n de servicio (host OS BUG_ON) a trav\u00e9s de un acceso de memoria manipulado."
}
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"accessComplexity" : "LOW" ,
"authentication" : "NONE" ,
"confidentialityImpact" : "NONE" ,
"integrityImpact" : "NONE" ,
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"baseScore" : 6.1
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"exploitabilityScore" : 6.5 ,
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"url" : "http://lists.xensource.com/archives/html/xen-devel/2010-11/msg01650.html" ,
"source" : "secalert@redhat.com" ,
"tags" : [
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} ,
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{
"url" : "http://secunia.com/advisories/42884" ,
"source" : "secalert@redhat.com"
} ,
{
"url" : "http://secunia.com/advisories/46397" ,
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} ,
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{
"url" : "http://www.redhat.com/support/errata/RHSA-2011-0017.html" ,
"source" : "secalert@redhat.com"
} ,
{
"url" : "http://www.securityfocus.com/archive/1/520102/100/0/threaded" ,
"source" : "secalert@redhat.com"
} ,
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"url" : "http://www.vmware.com/security/advisories/VMSA-2011-0012.html" ,
"source" : "secalert@redhat.com"
} ,
{
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=658155" ,
"source" : "secalert@redhat.com" ,
"tags" : [
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}
