{
  "threat_severity" : "Important",
  "public_date" : "2017-06-20T00:00:00Z",
  "bugzilla" : {
    "description" : "xen: NULL pointer deref in event channel poll (XSA-221)",
    "id" : "1458875",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1458875"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H",
    "status" : "draft"
  },
  "cwe" : "CWE-476",
  "details" : [ "Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221." ],
  "acknowledgement" : "Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Ankur Arora (Oracle) as the original reporter.",
  "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-2017-10917\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-10917\nhttp://xenbits.xen.org/xsa/advisory-221.html" ],
  "name" : "CVE-2017-10917",
  "csaw" : false
}