CVE-2011-0753

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extensi\u00f3n PCNTL en PHP anteriores a 5.3.4, cuando existe un gestor de se\u00f1al definido por el usuario, podr\u00eda permitir a atacantes dependiendo del contexto provocar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria) a trav\u00e9s de un n\u00famero de se\u00f1ales muy grande."}], "id": "CVE-2011-0753", "lastModified": "2026-06-16T23:28:00.353", "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": false}]}, "published": "2011-02-02T22:00:02.050", "references": 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"CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "php: race condition when handling many concurrent signals may lead to memory corruption", "id": "674705", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=674705"}, "csaw": false, "details": ["Race condition in the PCNTL extension in PHP before 5.3.4, when a user-defined signal handler exists, might allow context-dependent attackers to cause a denial of service (memory corruption) via a large number of concurrent signals."], "name": "CVE-2011-0753", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Will not fix", "package_name": "php", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "php", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "php53", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "php", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2010-09-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-0753\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-0753"], "statement": "Red Hat does not consider this issue to be a security vulnerability since no trust boundary is crossed. Any process able to send signals to a running PHP process can terminate it by sending a carefully-chosen signal."}

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