rsec-2023-6

{
  "affected": [
    {
      "database_specific": {
        "source": "https://github.com/RConsortium/r-advisory-database/blob/main/vulns/commonmark/RSEC-2023-6.yaml"
      },
      "package": {
        "ecosystem": "CRAN",
        "name": "commonmark",
        "purl": "pkg:cran/commonmark"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.2"
            },
            {
              "fixed": "1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.2",
        "0.4",
        "0.5",
        "0.6",
        "0.7",
        "0.8",
        "0.9",
        "1.0",
        "1.1",
        "1.2",
        "1.4",
        "1.5",
        "1.6",
        "1.7"
      ]
    }
  ],
  "details": "The commonmark package, specifically in its dependency on GitHub Flavored Markdown before version 0.29.0.gfm.1, has a vulnerability related to time complexity. Parsing certain crafted markdown tables can take O(n * n) time, leading to potential Denial of Service attacks. This issue does not affect the upstream cmark project and has been fixed in version 0.29.0.gfm.1.",
  "id": "RSEC-2023-6",
  "modified": "2025-05-19T19:43:47.903227Z",
  "published": "2023-10-06T05:00:00.600Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://security-tracker.debian.org/tracker/CVE-2020-5238"
    },
    {
      "type": "WEB",
      "url": "https://github.com/r-lib/commonmark/issues/13"
    },
    {
      "type": "WEB",
      "url": "https://github.com/r-lib/commonmark/pull/18"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "Denial of Service (DoS) vulnerability",
  "upstream": [
    "CVE-2020-5238"
  ]
}