GHSA-4R62-V4VQ-HR96

Vulnerability from github – Published: 2021-02-08 21:17 – Updated: 2021-02-08 21:17
VLAI?
Summary
Regular Expression Denial of Service (REDoS) in Marked
Details

Impact

What kind of vulnerability is it? Who is impacted?

Regular expression Denial of Service

A Denial of Service attack can affect anyone who runs user generated code through marked.

Patches

Has the problem been patched? What versions should users upgrade to?

patched in v2.0.0

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

None.

References

Are there any links users can visit to find out more?

https://github.com/markedjs/marked/issues/1927 https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS

For more information

If you have any questions or comments about this advisory: * Open an issue in marked

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "marked"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1.1"
            },
            {
              "fixed": "2.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21306"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-02-08T21:17:26Z",
    "nvd_published_at": "2021-02-08T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\n[Regular expression Denial of Service](https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS)\n\nA Denial of Service attack can affect anyone who runs user generated code through `marked`.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\npatched in v2.0.0\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nNone.\n\n### References\n_Are there any links users can visit to find out more?_\n\nhttps://github.com/markedjs/marked/issues/1927\nhttps://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [marked](https://github.com/markedjs/marked/issues)",
  "id": "GHSA-4r62-v4vq-hr96",
  "modified": "2021-02-08T21:17:26Z",
  "published": "2021-02-08T21:17:58Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21306"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markedjs/marked/issues/1927"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markedjs/marked/pull/1864"
    },
    {
      "type": "WEB",
      "url": "https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/marked"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Regular Expression Denial of Service (REDoS) in Marked"
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.