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(PCRE) anterior a 7.3 no computa adecuadamente la longitud de (1) una secuencia \\p, (2) una secuencia \\P, o (3) una secuencia \\P{x}, lo cual permite a atacantes dependientes de contexto provocar una denegaci\u00f3n de servicio (bucle infinito o ca\u00edda) o ejecutar c\u00f3digo de su elecci\u00f3n."}], "id": "CVE-2007-4767", "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}]}, "published": "2007-11-07T23:46:00.000", "references": 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{"bugzilla": {"description": ": pcre < 7.3 \\p, \\P, \\P{x] length calculation issue", "id": "392901", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=392901"}, "csaw": false, "details": ["Perl-Compatible Regular Expression (PCRE) library before 7.3 does not properly compute the length of (1) a \\p sequence, (2) a \\P sequence, or (3) a \\P{x} sequence, which allows context-dependent attackers to cause a denial of service (infinite loop or crash) or execute arbitrary code."], "name": "CVE-2007-4767", "public_date": "2007-11-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2007-4767\nhttps://nvd.nist.gov/vuln/detail/CVE-2007-4767"], "threat_severity": "Important"}