{
  "threat_severity" : "Moderate",
  "public_date" : "2017-03-21T00:00:00Z",
  "bugzilla" : {
    "description" : "ntp: Authenticated DoS via Malicious Config Option",
    "id" : "1434002",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1434002"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-20->CWE-476",
  "details" : [ "NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.", "A vulnerability was discovered in the NTP server's parsing of configuration directives. A remote, authenticated attacker could cause ntpd to crash by sending a crafted message." ],
  "acknowledgement" : "Red Hat would like to thank the NTP project for reporting this issue. Upstream acknowledges Cure53 as the original reporter.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2017-10-26T00:00:00Z",
    "advisory" : "RHSA-2017:3071",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "ntp-0:4.2.6p5-12.el6_9.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2018-04-10T00:00:00Z",
    "advisory" : "RHSA-2018:0855",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "ntp-0:4.2.6p5-28.el7"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Will not fix",
    "package_name" : "ntp",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2017-6463\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-6463" ],
  "name" : "CVE-2017-6463",
  "mitigation" : {
    "value" : "Properly monitor your ntpd instances, and auto-restart ntpd (without -g) if it stops running.",
    "lang" : "en:us"
  },
  "csaw" : false
}