{
  "id": "CVE-2023-36632",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-06-25T18:15:09.313",
  "lastModified": "2024-08-02T17:16:13.363",
  "vulnStatus": "Modified",
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The legacy email.utils.parseaddr function in Python through 3.11.4 allows attackers to trigger \"RecursionError: maximum recursion depth exceeded while calling a Python object\" via a crafted argument. This argument is plausibly an untrusted value from an application's input data that was supposed to contain a name and an e-mail address. NOTE: email.utils.parseaddr is categorized as a Legacy API in the documentation of the Python email package. Applications should instead use the email.parser.BytesParser or email.parser.Parser class. NOTE: the vendor's perspective is that this is neither a vulnerability nor a bug. The email package is intended to have size limits and to throw an exception when limits are exceeded; they were exceeded by the example demonstration code."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "3.11.4",
              "matchCriteriaId": "FBFABA38-746A-451D-A9DB-8AF31A4AE9B3"
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  ],
  "references": [
    {
      "url": "https://docs.python.org/3/library/email.html",
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://docs.python.org/3/library/email.utils.html",
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/Daybreak2019/PoC_python3.9_Vul/blob/main/RecursionError-email.utils.parseaddr.py",
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/python/cpython/issues/103800",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ]
    }
  ]
}