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true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers to cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation."}, {"lang": "es", "value": "La funci\u00f3n _zip_name_locate en zip_name_locate.c en la extensi\u00f3n Zip en PHP en versiones anteriores a 5.3.6 no maneja adecuadamente un argumento ZIPARCHIVE::FL_UNCHANGED, lo que podr\u00eda permitir a atacantes dependientes del contexto provocar una denegaci\u00f3n de servicio (referencia a puntero NULL) a trav\u00e9s de un archivo ZIP vac\u00edo que es procesado con una operaci\u00f3n (1) locateName or (2) statName."}], "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/476.html\r\n'CWE-476: NULL Pointer Dereference'", "id": "CVE-2011-0421", "lastModified": "2026-04-29T01:13:23.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}]}, "published": "2011-03-20T02:00:03.377", "references": [{"source": "cret@cert.org", "tags": ["Exploit"], "url": "http://bugs.php.net/bug.php?id=53885"}, {"source": "cret@cert.org", "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"}, {"source": "cret@cert.org", "url": 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{"source": "cret@cert.org", "url": "http://www.debian.org/security/2011/dsa-2266"}, {"source": "cret@cert.org", "tags": ["Exploit"], "url": "http://www.exploit-db.com/exploits/17004"}, {"source": "cret@cert.org", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:052"}, {"source": "cret@cert.org", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:053"}, {"source": "cret@cert.org", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:099"}, {"source": "cret@cert.org", "url": "http://www.php.net/ChangeLog-5.php"}, {"source": "cret@cert.org", "url": "http://www.php.net/archive/2011.php"}, {"source": "cret@cert.org", "url": "http://www.php.net/releases/5_3_6.php"}, {"source": "cret@cert.org", "url": "http://www.securityfocus.com/archive/1/517065/100/0/threaded"}, {"source": "cret@cert.org", "url": "http://www.securityfocus.com/bid/46354"}, {"source": "cret@cert.org", "tags": ["Vendor Advisory"], "url": 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[{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "php/libzip: segfault with FL_UNCHANGED on empty archive in zip_name_locate()", "id": "688735", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=688735"}, "csaw": false, "cvss": {"cvss_base_score": "2.6", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:N/I:N/A:P", "status": "draft"}, "details": ["The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers to cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation."], "name": "CVE-2011-0421", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "php53", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "libzip", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "php", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2011-01-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-0421\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-0421"], "threat_severity": "Low"}

{}