{
  "threat_severity" : "Moderate",
  "public_date" : "2021-11-15T00:00:00Z",
  "bugzilla" : {
    "description" : "ruby: Regular expression denial of service vulnerability of Date parsing methods",
    "id" : "2025104",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2025104"
  },
  "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-400",
  "details" : [ "Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.", "A flaw was found in ruby, where the date object was found to be vulnerable to a regular expression denial of service (ReDoS) during the parsing of dates. This flaw allows an attacker to hang a ruby application by providing a specially crafted date string. The highest threat to this vulnerability is system availability." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-02-16T00:00:00Z",
    "advisory" : "RHSA-2022:0543",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "ruby:2.6-8050020211215144356.c5368500"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-08-01T00:00:00Z",
    "advisory" : "RHSA-2022:5779",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "ruby:2.5-8060020220715152618.ad008a3a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-09-13T00:00:00Z",
    "advisory" : "RHSA-2022:6447",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "ruby:2.7-8060020220728151401.ad008a3a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-09-13T00:00:00Z",
    "advisory" : "RHSA-2022:6450",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "ruby:3.0-8060020220810162001.ad008a3a"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions",
    "release_date" : "2022-02-21T00:00:00Z",
    "advisory" : "RHSA-2022:0581",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.1",
    "package" : "ruby:2.6-8010020220201152941.c27ad7f8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
    "release_date" : "2022-02-21T00:00:00Z",
    "advisory" : "RHSA-2022:0582",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.2",
    "package" : "ruby:2.6-8020020220201131207.4cda2c84"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Extended Update Support",
    "release_date" : "2022-02-16T00:00:00Z",
    "advisory" : "RHSA-2022:0544",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.4",
    "package" : "ruby:2.6-8040020220131135901.522a0ee4"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7",
    "release_date" : "2022-02-28T00:00:00Z",
    "advisory" : "RHSA-2022:0708",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "rh-ruby26-ruby-0:2.6.9-120.el7"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7",
    "release_date" : "2022-10-11T00:00:00Z",
    "advisory" : "RHSA-2022:6855",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "rh-ruby30-ruby-0:3.0.4-149.el7"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7",
    "release_date" : "2022-10-11T00:00:00Z",
    "advisory" : "RHSA-2022:6856",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "rh-ruby27-ruby-0:2.7.6-131.el7"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "ruby",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Will not fix",
    "package_name" : "ruby",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "ruby",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-41817\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-41817\nhttps://www.ruby-lang.org/en/news/2021/11/15/date-parsing-method-regexp-dos-cve-2021-41817/" ],
  "name" : "CVE-2021-41817",
  "csaw" : false
}