fkie_cve-2009-4418
Vulnerability from fkie_nvd
Published
2009-12-24 17:30
Modified
2025-04-09 00:30
Severity ?
Summary
The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.
References
cve@mitre.orghttp://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/
cve@mitre.orghttp://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf
af854a3a-2127-422b-91ae-364da2661108http://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/
af854a3a-2127-422b-91ae-364da2661108http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf
Impacted products
Vendor Product Version
php php *
php php 5
php php 5.0
php php 5.0
php php 5.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.0
php php 5.0.1
php php 5.0.2
php php 5.0.3
php php 5.0.4
php php 5.0.5
php php 5.1.0
php php 5.1.1
php php 5.1.2
php php 5.1.3
php php 5.1.4
php php 5.1.5
php php 5.1.6
php php 5.2.0
php php 5.2.1
php php 5.2.2
php php 5.2.3
php php 5.2.4
php php 5.2.4
php php 5.2.5
php php 5.2.6
php php 5.2.7
php php 5.2.8
php php 5.2.9
php php 5.2.10
php php 5.2.11


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n deserializada (unserialize) en PHP 5.3.0 y anteriores permite a atacantes dependientes del contexto causar una denegaci\u00f3n de servicio (consumo de recursos) a trav\u00e9s una variables anidadas profundamente, como queda demostrada con una cadena inicializada con a:1: seguida de una larga secuencia {a:1: ."
    }
  ],
  "id": "CVE-2009-4418",
  "lastModified": "2025-04-09T00:30:58.490",
  "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
      }
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  },
  "published": "2009-12-24T17:30:00.233",
  "references": [
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      "source": "cve@mitre.org",
      "url": "http://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/"
    },
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf"
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  "sourceIdentifier": "cve@mitre.org",
  "vendorComments": [
    {
      "comment": "Red Hat does not consider this to be a security flaw. For further details, see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-4418",
      "lastModified": "2010-01-04T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
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}


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