FKIE_CVE-2017-6441

Vulnerability from fkie_nvd - Published: 2017-04-03 05:59 - Updated: 2026-06-17 01:22
Severity
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
References
cve@mitre.orghttps://bugs.php.net/bug.php?id=74146Issue Tracking
cve@mitre.orghttps://github.com/php/php-src/pull/2396Patch
af854a3a-2127-422b-91ae-364da2661108https://bugs.php.net/bug.php?id=74146Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/php/php-src/pull/2396Patch
Impacted products
Vendor Product Version
php php 7.1.2
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      "source": "cve@mitre.org"
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  "cveTags": [
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  "descriptions": [
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      "lang": "en",
      "value": "The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of \"declare(ticks=\" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating \"Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only."
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** El _zval_get_long_func_ex en Zend/zend_operators.c en PHP 7.1.2 permite a atacantes provocar una denegaci\u00f3n de servicio (referencia al puntero NULL y ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s del uso manipulado de \"declare(ticks=\" en el script PHP. NOTA:El proveedor disputar\u00e1 la clasificaci\u00f3n de esto como una vulnerabilidad, declarando: \"Por favor, no solicite CVEs para los errores ordinarios. CVEs son relevantes s\u00f3lo para problemas de seguridad\"."
    }
  ],
  "id": "CVE-2017-6441",
  "lastModified": "2026-06-17T01:22:21.270",
  "metrics": {
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        "baseSeverity": "MEDIUM",
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          "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"
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        "obtainOtherPrivilege": false,
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2017-04-03T05:59:00.910",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://bugs.php.net/bug.php?id=74146"
    },
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  "vulnStatus": "Modified",
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        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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