{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2018-5244",
      "STATE" : "PUBLIC"
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   "affects" : {
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         "vendor_data" : [
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   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times."
         }
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      "reference_data" : [
         {
            "name" : "https://xenbits.xen.org/xsa/advisory-253.html",
            "refsource" : "CONFIRM",
            "url" : "https://xenbits.xen.org/xsa/advisory-253.html"
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         {
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         {
            "name" : "102433",
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            "name" : "1040774",
            "refsource" : "SECTRACK",
            "url" : "http://www.securitytracker.com/id/1040774"
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