{
  "threat_severity" : "Important",
  "public_date" : "2020-08-12T12:00:00Z",
  "bugzilla" : {
    "description" : "dovecot: Resource exhaustion via deeply nested MIME parts",
    "id" : "1866309",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1866309"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-674",
  "details" : [ "In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.", "A flaw was found in dovecot. A remote attacker could cause a denial of service by repeatedly sending emails containing MIME parts containing malicious content of which dovecot will attempt to parse. The highest threat from this vulnerability is to system availability." ],
  "acknowledgement" : "Red Hat would like to thank the Dovecot project for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-03T00:00:00Z",
    "advisory" : "RHSA-2020:3617",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "dovecot-1:2.2.36-6.el7_8.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2020-09-10T00:00:00Z",
    "advisory" : "RHSA-2020:3713",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "dovecot-1:2.3.8-2.el8_2.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3735",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.0",
    "package" : "dovecot-1:2.2.36-5.el8_0.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3736",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.1",
    "package" : "dovecot-1:2.2.36-10.el8_1.2"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "dovecot",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Affected",
    "package_name" : "dovecot",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-12100\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-12100\nhttps://dovecot.org/pipermail/dovecot-news/2020-August/000441.html" ],
  "name" : "CVE-2020-12100",
  "mitigation" : {
    "value" : "Upstream suggests that this flaw can be mitigated by limiting MIME structures in MTA",
    "lang" : "en:us"
  },
  "csaw" : false
}