nvd-json-data-feeds/CVE-2021/CVE-2021-212xx/CVE-2021-21240.json

{
  "id": "CVE-2021-21240",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-02-08T20:15:12.197",
  "lastModified": "2024-11-21T05:47:50.650",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of \"\\xa0\" characters in the \"www-authenticate\" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library."
    },
    {
      "lang": "es",
      "value": "httplib2 es una biblioteca cliente HTTP completa para Python. En httplib2 anterior a la versi\u00f3n 0.19.0, un servidor malicioso que responde con una larga serie de caracteres \"\\xa0\" en el encabezado \"www-authenticate\" puede causar una Denegaci\u00f3n de Servicio (CPU quemada mientras analiza el encabezado) del cliente httplib2 que accede a dicho servidor. Esto se corrigi\u00f3 en la versi\u00f3n 0.19.0, que contiene una nueva implementaci\u00f3n de an\u00e1lisis de encabezados de autenticaci\u00f3n usando la biblioteca pyparsing"
    }
  ],
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        "type": "Secondary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      },
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        "type": "Primary",
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          "baseSeverity": "HIGH",
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          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
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        "source": "nvd@nist.gov",
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          "baseScore": 5.0,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
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          "negate": false,
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  "references": [
    {
      "url": "https://github.com/httplib2/httplib2/commit/bd9ee252c8f099608019709e22c0d705e98d26bc",
      "source": "security-advisories@github.com",
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}