{
  "threat_severity" : "Moderate",
  "public_date" : "2019-02-05T00:00:00Z",
  "bugzilla" : {
    "description" : "dovecot: Improper certificate validation",
    "id" : "1673415",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1673415"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.7",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-295",
  "details" : [ "It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.", "It was discovered that Dovecot incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-03-31T00:00:00Z",
    "advisory" : "RHSA-2020:1062",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "dovecot-1:2.2.36-6.el7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2019-11-05T00:00:00Z",
    "advisory" : "RHSA-2019:3467",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dovecot-1:2.2.36-10.el8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Will not fix",
    "package_name" : "dovecot",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Will not fix",
    "package_name" : "dovecot",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2019-3814\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-3814\nhttps://www.dovecot.org/list/dovecot/2019-February/114575.html" ],
  "name" : "CVE-2019-3814",
  "mitigation" : {
    "value" : "Attack can be migitated by having the certificates with proper Extended Key Usage, such as 'TLS Web Server' and 'TLS Web Server Client'. Also client-side certification authentication can be turned off using:\nauth_ssl_require_client_cert = no\nauth_ssl_username_from_cert = no",
    "lang" : "en:us"
  },
  "csaw" : false
}