{
  "threat_severity" : "Moderate",
  "public_date" : "2013-11-01T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: xen: Lock order reversal between page allocation and grant table locks",
    "id" : "1026243",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1026243"
  },
  "cvss" : {
    "cvss_base_score" : "4.3",
    "cvss_scoring_vector" : "AV:A/AC:H/Au:S/C:N/I:N/A:C",
    "status" : "verified"
  },
  "details" : [ "Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors." ],
  "statement" : "This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.",
  "acknowledgement" : "Red Hat would like to thank Xen project for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "release_date" : "2014-01-29T00:00:00Z",
    "advisory" : "RHSA-2014:0108",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5",
    "package" : "kernel-0:2.6.18-371.4.1.el5"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Affected",
    "package_name" : "kernel-xen",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise MRG 2",
    "fix_state" : "Not affected",
    "package_name" : "realtime-kernel",
    "cpe" : "cpe:/a:redhat:enterprise_mrg:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2013-4494\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-4494" ],
  "name" : "CVE-2013-4494",
  "csaw" : false
}