fkie_cve-2019-20477
Vulnerability from fkie_nvd
Published
2020-02-19 04:15
Modified
2024-11-21 04:38
Severity ?
Summary
PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.
Impacted products
Vendor Product Version
pyyaml pyyaml *
fedoraproject fedora 30
fedoraproject fedora 31



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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342."
    },
    {
      "lang": "es",
      "value": "PyYAML versiones 5.1 hasta 5.1.2,  presenta restricciones insuficientes en las funciones load y load_all debido a un problema de deserializaci\u00f3n de clase, por ejemplo, Popen es una clase en el m\u00f3dulo subprocess. NOTA: este problema se presenta debido a una correcci\u00f3n incompleta para el CVE-2017-18342."
    }
  ],
  "id": "CVE-2019-20477",
  "lastModified": "2024-11-21T04:38:34.590",
  "metrics": {
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2020-02-19T04:15:10.803",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES"
    },
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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