fkie_cve-2020-14058
Vulnerability from fkie_nvd
Published
2020-06-30 19:15
Modified
2024-11-21 05:02
Summary
An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.
Impacted products



{
  "configurations": [
    {
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        {
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              "versionEndIncluding": "3.5.28",
              "versionStartIncluding": "3.1",
              "vulnerable": true
            },
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              "matchCriteriaId": "C3430B4A-4E1E-438D-9C84-4CFED6A3F023",
              "versionEndExcluding": "4.12",
              "versionStartIncluding": "4.0",
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            },
            {
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              "matchCriteriaId": "137B599B-80D1-4903-8791-40F11BC3FCD9",
              "versionEndExcluding": "5.0.3",
              "versionStartIncluding": "5.0",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
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              "vulnerable": true
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          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en Squid versiones anteriores a 4.12 y versiones 5.x anteriores a  5.0.3. Debido al uso de una funci\u00f3n potencialmente peligrosa, Squid y el asistente de comprobaci\u00f3n de certificados predeterminado son vulnerables a una Denegaci\u00f3n de Servicio al abrir una conexi\u00f3n TLS en un servidor controlado por el atacante por HTTPS. Esto ocurre porque los valores de error no reconocidos son asignados a NULL, pero el c\u00f3digo posterior espera que cada valor de error sea asignado a una cadena de error v\u00e1lida"
    }
  ],
  "id": "CVE-2020-14058",
  "lastModified": "2024-11-21T05:02:27.447",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-06-30T19:15:11.130",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.squid-cache.org/Advisories/SQUID-2020_6.txt"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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    },
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    },
    {
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.squid-cache.org/Advisories/SQUID-2020_6.txt"
    },
    {
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    },
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    },
    {
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      "tags": [
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      "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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