{
   "CVE_data_meta" : {
      "ASSIGNER" : "cve@mitre.org",
      "ID" : "CVE-2011-4622",
      "STATE" : "PUBLIC"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "n/a",
                        "version" : {
                           "version_data" : [
                              {
                                 "version_value" : "n/a"
                              }
                           ]
                        }
                     }
                  ]
               },
               "vendor_name" : "n/a"
            }
         ]
      }
   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer."
         }
      ]
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "n/a"
               }
            ]
         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "name" : "[kvm] 20111214 [PATCH 1/2] KVM: x86: Prevent starting PIT timers in the absence of irqchip support",
            "refsource" : "MLIST",
            "url" : "http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/83564"
         },
         {
            "name" : "[oss-security] 20111221 Re: kernel: kvm: pit timer with no irqchip crashes the system",
            "refsource" : "MLIST",
            "url" : "http://www.openwall.com/lists/oss-security/2011/12/21/7"
         },
         {
            "name" : "https://bugzilla.redhat.com/show_bug.cgi?id=769721",
            "refsource" : "CONFIRM",
            "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=769721"
         },
         {
            "name" : "RHSA-2012:0051",
            "refsource" : "REDHAT",
            "url" : "http://www.redhat.com/support/errata/RHSA-2012-0051.html"
         },
         {
            "name" : "openSUSE-SU-2013:0925",
            "refsource" : "SUSE",
            "url" : "http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html"
         },
         {
            "name" : "SUSE-SU-2012:0616",
            "refsource" : "SUSE",
            "url" : "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html"
         },
         {
            "name" : "51172",
            "refsource" : "BID",
            "url" : "http://www.securityfocus.com/bid/51172"
         },
         {
            "name" : "1026559",
            "refsource" : "SECTRACK",
            "url" : "http://www.securitytracker.com/id?1026559"
         }
      ]
   }
}