GHSA-8CV5-P934-3HWP

Vulnerability from github – Published: 2020-12-08 21:42 – Updated: 2021-10-08 20:36
VLAI?
Summary
Denial of service in fast-csv
Details

Impact

Possible ReDoS (Regular Expression Denial of Service) when using ignoreEmpty option when parsing.

Patches

This has been patched in v4.3.6

Workarounds

You will only be affected by this if you use the ignoreEmpty parsing option. If you do use this option it is recommended that you upgrade to the latest version v4.3.6

References

This vulnerability was found using a CodeQL query which identified EMPTY_ROW_REGEXP regular expression as vulnerable. Link to query run.

For more information

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

Severity ?
5.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "fast-csv"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@fast-csv/parse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26256"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-12-08T21:42:31Z",
    "nvd_published_at": "2020-12-08T22:15:00Z",
    "severity": "LOW"
  },
  "details": "### Impact\nPossible ReDoS (Regular Expression Denial of Service) when using `ignoreEmpty` option when parsing.\n\n### Patches\nThis has been patched in `v4.3.6`\n\n### Workarounds\nYou will only be affected by this if you use the `ignoreEmpty` parsing option. If you do use this option it is recommended that you upgrade to the latest version `v4.3.6`\n\n### References\n\nThis vulnerability was found using a [CodeQL](https://securitylab.github.com/tools/codeql) query which identified `EMPTY_ROW_REGEXP` regular expression as vulnerable.\n[Link to query run](https://lgtm.com/query/8609731774537641779/). \n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [fast-csv](https://github.com/C2FO/fast-csv)",
  "id": "GHSA-8cv5-p934-3hwp",
  "modified": "2021-10-08T20:36:36Z",
  "published": "2020-12-08T21:42:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26256"
    },
    {
      "type": "WEB",
      "url": "https://github.com/C2FO/fast-csv/issues/540"
    },
    {
      "type": "WEB",
      "url": "https://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/C2FO/fast-csv"
    },
    {
      "type": "WEB",
      "url": "https://lgtm.com/query/8609731774537641779"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/1587"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/1588"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/@fast-csv/parse"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/fast-csv"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service in fast-csv"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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