ghsa-mmrq-6999-72v8
Vulnerability from github
Published
2022-05-13 01:50
Modified
2023-07-24 20:06
Severity ?
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Ruby Openssl Allows Incorrect Value Comparison
Details

An issue was discovered in the OpenSSL library in Ruby when two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.1.0"
            },
            {
              "fixed": "2.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-16395"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-09T22:57:50Z",
    "nvd_published_at": "2018-11-16T18:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in the OpenSSL library in Ruby when two `OpenSSL::X509::Name` objects are compared using `==`, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of `==` will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.",
  "id": "GHSA-mmrq-6999-72v8",
  "modified": "2023-07-24T20:06:51Z",
  "published": "2022-05-13T01:50:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16395"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/openssl/commit/f653cfa43f0f20e8c440122ea982382b6228e7f5"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/387250"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-5-2-released"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-4-5-released"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-3-8-released"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2020.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4332"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20211206015239/https://securitytracker.com/id/1042105"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3808-1"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20190221-0002"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openssl/CVE-2018-16395.yml"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2565"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:1948"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3738"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3731"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3730"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3729"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ruby Openssl Allows Incorrect Value Comparison"
}


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