{
  "schema_version": "1.4.0",
  "id": "GHSA-636f-xm5j-pj9m",
  "modified": "2023-01-24T18:12:17Z",
  "published": "2023-01-24T18:12:17Z",
  "aliases": [],
  "summary": "Several quadratic complexity bugs may lead to denial of service in Commonmarker",
  "details": "## Impact\n\nSeveral quadratic complexity bugs in commonmarker's underlying [`cmark-gfm`](https://github.com/github/cmark-gfm) library may lead to unbounded resource exhaustion and subsequent denial of service.\n\nThe following vulnerabilities were addressed:\n\n* [CVE-2023-22483](https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c)\n* [CVE-2023-22484](https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2r)\n* [CVE-2023-22485](https://github.com/github/cmark-gfm/security/advisories/GHSA-c944-cv5f-hpvr)\n* [CVE-2023-22486](https://github.com/github/cmark-gfm/security/advisories/GHSA-r572-jvj2-3m8p)\n\nFor more information, consult the release notes for version [`0.23.0.gfm.7`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.7).\n\n## Mitigation\n\nUsers are advised to upgrade to commonmarker version [`0.23.7`](https://rubygems.org/gems/commonmarker/versions/0.23.7).",
  "severity": [],
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "commonmarker"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.23.7"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-636f-xm5j-pj9m"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gjtorikian/commonmarker"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-24T18:12:17Z",
    "nvd_published_at": null
  }
}