{
  "threat_severity" : "Moderate",
  "public_date" : "2017-04-12T00:00:00Z",
  "bugzilla" : {
    "description" : "bind: Incorrect error handling causes assertion failure when using DNS64 with \"break-dnssec yes;\"",
    "id" : "1441125",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1441125"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.9",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-617",
  "details" : [ "A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were met. Affects BIND 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8.", "A denial of service flaw was found in the way BIND handled query requests when using DNS64 with \"break-dnssec yes\" option. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS request." ],
  "acknowledgement" : "Red Hat would like to thank ISC for reporting this issue. Upstream acknowledges Oleg Gorokhov (Yandex) as the original reporter.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "release_date" : "2017-04-20T00:00:00Z",
    "advisory" : "RHSA-2017:1105",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6",
    "package" : "bind-32:9.8.2-0.62.rc1.el6_9.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2017-04-19T00:00:00Z",
    "advisory" : "RHSA-2017:1095",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "bind-32:9.9.4-38.el7_3.3"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "bind",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "bind97",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2017-3136\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-3136\nhttps://kb.isc.org/article/AA-01465" ],
  "name" : "CVE-2017-3136",
  "mitigation" : {
    "value" : "Servers which have configurations which require DNS64 and \"break-dnssec yes;\" should upgrade.  Servers which are not using these features in conjunction are not at risk from this defect.",
    "lang" : "en:us"
  },
  "csaw" : false
}