{
  "threat_severity" : "Moderate",
  "public_date" : "2018-12-02T00:00:00Z",
  "bugzilla" : {
    "description" : "krb5: Reachable assertion in the KDC using S4U2Self requests",
    "id" : "1665296",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1665296"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.3",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-617",
  "details" : [ "A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker can obtain a krbtgt ticket using an older encryption type (single-DES, triple-DES, or RC4), the attacker can crash the KDC by making an S4U2Self request." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Ansible Tower 3.4 for RHEL 7",
    "release_date" : "2020-02-18T00:00:00Z",
    "advisory" : "RHBA-2020:0547",
    "cpe" : "cpe:/a:redhat:ansible_tower:3.4::el7",
    "package" : "ansible-tower-34/ansible-tower-memcached:1.4.15-28"
  }, {
    "product_name" : "Red Hat Ansible Tower 3.4 for RHEL 7",
    "release_date" : "2020-02-18T00:00:00Z",
    "advisory" : "RHBA-2020:0547",
    "cpe" : "cpe:/a:redhat:ansible_tower:3.4::el7",
    "package" : "ansible-tower-35/ansible-tower-memcached:1.4.15-28"
  }, {
    "product_name" : "Red Hat Ansible Tower 3.4 for RHEL 7",
    "release_date" : "2020-02-18T00:00:00Z",
    "advisory" : "RHBA-2020:0547",
    "cpe" : "cpe:/a:redhat:ansible_tower:3.4::el7",
    "package" : "ansible-tower-37/ansible-tower-memcached-rhel7:1.4.15-28"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2019-09-04T00:00:00Z",
    "advisory" : "RHBA-2019:2599",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "krb5-0:1.15.1-37.el7_7.2"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "krb5",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Will not fix",
    "package_name" : "krb5",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "krb5",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat JBoss Core Services",
    "fix_state" : "Out of support scope",
    "package_name" : "krb5",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 6",
    "fix_state" : "Out of support scope",
    "package_name" : "krb5",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:6"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Web Server 2",
    "fix_state" : "Out of support scope",
    "package_name" : "krb5",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2018-20217\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20217" ],
  "name" : "CVE-2018-20217",
  "csaw" : false
}