ghsa-fj7x-q9j7-g6q6
Vulnerability from github
Published
2024-03-19 06:30
Modified
2024-03-20 15:24
Summary
Black vulnerable to Regular Expression Denial of Service (ReDoS)
Details

Versions of the package black before 24.3.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the lines_with_leading_tabs_expanded function in the strings.py file. An attacker could exploit this vulnerability by crafting a malicious input that causes a denial of service.

Exploiting this vulnerability is possible when running Black on untrusted input, or if you habitually put thousands of leading tab characters in your docstrings.

Show details on source website


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "black"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-21503"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-75"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-20T15:24:01Z",
    "nvd_published_at": "2024-03-19T05:15:09Z",
    "severity": "MODERATE"
  },
  "details": "Versions of the package black before 24.3.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the lines_with_leading_tabs_expanded function in the strings.py file. An attacker could exploit this vulnerability by crafting a malicious input that causes a denial of service.\n\nExploiting this vulnerability is possible when running Black on untrusted input, or if you habitually put thousands of leading tab characters in your docstrings.",
  "id": "GHSA-fj7x-q9j7-g6q6",
  "modified": "2024-03-20T15:24:01Z",
  "published": "2024-03-19T06:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21503"
    },
    {
      "type": "WEB",
      "url": "https://github.com/psf/black/commit/f00093672628d212b8965a8993cee8bedf5fe9b8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/psf/black"
    },
    {
      "type": "WEB",
      "url": "https://github.com/psf/black/releases/tag/24.3.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/black/PYSEC-2024-48.yaml"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-PYTHON-BLACK-6256273"
    }
  ],
  "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": "Black vulnerable to Regular Expression Denial of Service (ReDoS)"
}


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