{
  "threat_severity" : "Moderate",
  "public_date" : "2018-10-24T00:00:00Z",
  "bugzilla" : {
    "description" : "xen: Nested VT-x usable even when disabled",
    "id" : "1643116",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1643116"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
    "status" : "draft"
  },
  "cwe" : "CWE-250",
  "details" : [ "An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "xen",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2018-18883\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-18883" ],
  "name" : "CVE-2018-18883",
  "csaw" : false
}