{
  "threat_severity" : "Important",
  "public_date" : "2012-11-13T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: xen: Grant Table hypercall infinite loop can crash Xen",
    "id" : "870110",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=870110"
  },
  "cvss" : {
    "cvss_base_score" : "5.5",
    "cvss_scoring_vector" : "AV:A/AC:L/Au:S/C:N/I:N/A:C",
    "status" : "draft"
  },
  "cwe" : "CWE-835",
  "details" : [ "Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka \"Grant table hypercall infinite loop DoS vulnerability.\"" ],
  "statement" : "Not vulnerable.\nThis issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.\nThis issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.",
  "acknowledgement" : "Red Hat would like to thank Xen project for reporting this issue.",
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kernel-xen",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2012-4539\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-4539" ],
  "name" : "CVE-2012-4539",
  "csaw" : false
}