FKIE_CVE-2007-4783

Vulnerability from fkie_nvd - Published: 2007-09-10 21:17 - Updated: 2026-06-16 22:44
Severity
Summary
The iconv_substr function in PHP 5.2.4 and earlier allows context-dependent attackers to cause (1) a denial of service (application crash) via a long string in the charset parameter, probably also requiring a long string in the str parameter; or (2) a denial of service (temporary application hang) via a long string in the str parameter. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.
References
cve@mitre.orghttp://osvdb.org/38917
cve@mitre.orghttp://secunia.com/advisories/27102
cve@mitre.orghttp://secunia.com/advisories/27659
cve@mitre.orghttp://secunia.com/advisories/30040
cve@mitre.orghttp://securityreason.com/securityalert/3115
cve@mitre.orghttp://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242
cve@mitre.orghttp://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
cve@mitre.orghttp://www.securityfocus.com/archive/1/478637/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/archive/1/491693/100/0/threaded
cve@mitre.orghttps://issues.rpath.com/browse/RPL-1943
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/38917
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/27102
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/27659
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/30040
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/3115
af854a3a-2127-422b-91ae-364da2661108http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242
af854a3a-2127-422b-91ae-364da2661108http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/478637/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/491693/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108https://issues.rpath.com/browse/RPL-1943
Impacted products
Vendor Product Version
php php *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A5B6B1C7-B7B8-495E-9FE5-FF39718DC64E",
              "versionEndIncluding": "5.2.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The iconv_substr function in PHP 5.2.4 and earlier allows context-dependent attackers to cause (1) a denial of service (application crash) via a long string in the charset parameter, probably also requiring a long string in the str parameter; or (2) a denial of service (temporary application hang) via a long string in the str parameter.  NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n iconv_substr en PHP 5.2.4 y anteriores permite a atacantes dependientes del contexto provocar (1) denegaci\u00f3n de servicio (caida de aplicaci\u00f3n) a trav\u00e9s de una cadena larga en el par\u00e1metro charset, probablemente tambi\u00e9n requiera de una cadena larga en el par\u00e1metro str; o (2) denegaci\u00f3n de servicio (cuelgue temporal de la aplicaci\u00f3n) a trav\u00e9s de una cadena larga en el par\u00e1metro str. NOTA: esto podr\u00eda no ser una vulnerabilidad en muchos entornos de servidor web que soporten m\u00faltiples hilos, a menos que estos asuntos puedan demostrarse para la ejecuci\u00f3n de c\u00f3digo."
    }
  ],
  "id": "CVE-2007-4783",
  "lastModified": "2026-06-16T22:44:47.330",
  "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
      }
    ]
  },
  "published": "2007-09-10T21:17:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://osvdb.org/38917"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/27102"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/27659"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/30040"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://securityreason.com/securityalert/3115"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/478637/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/491693/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://issues.rpath.com/browse/RPL-1943"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://osvdb.org/38917"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/27102"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/27659"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/30040"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://securityreason.com/securityalert/3115"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/478637/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/491693/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://issues.rpath.com/browse/RPL-1943"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vendorComments": [
    {
      "comment": "We do not consider this to be a security issue. For more information please see\nhttp://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1\nand http://www.php.net/security-note.php",
      "lastModified": "2007-09-12T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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