{ "id": "CVE-2009-4418", "sourceIdentifier": "cve@mitre.org", "published": "2009-12-24T17:30:00.233", "lastModified": "2018-10-30T16:25:35.747", "vulnStatus": "Analyzed", "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: ." } ], "vendorComments": [ { "organization": "Red Hat", "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" } ], "metrics": { "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-189" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", 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