CVE-2023-22411

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On SRX Series devices using Unified Policies with IPv6, when a specific IPv6 packet goes through a dynamic-application filter which will generate an ICMP deny message, the flowd core is observed and the PFE is restarted. This issue affects: Juniper Networks Junos OS on SRX Series: 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R3-S9; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3-S3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2."}, {"lang": "es", "value": "Una vulnerabilidad de escritura fuera de los l\u00edmites en el Flow Processing Daemon (flowd) de Juniper Networks Junos OS permite que un atacante no autenticado basado en la red provoque una denegaci\u00f3n de servicio (DoS). En los dispositivos de la serie SRX que utilizan pol\u00edticas unificadas con IPv6, cuando un paquete IPv6 espec\u00edfico pasa por un filtro de aplicaci\u00f3n din\u00e1mica que generar\u00e1 un mensaje de denegaci\u00f3n de ICMP, se observa el n\u00facleo fluido y se reinicia el PFE. Este problema afecta a: Juniper Networks Junos OS en la serie SRX: versiones 19.2 anteriores a 19.2R3-S6; Versiones 19.3 anteriores a 19.3R3-S6; Versiones 19.4 anteriores a 19.4R3-S9; Versiones 20.2 anteriores a 20.2R3-S5; Versiones 20.3 anteriores a 20.3R3-S4; Versiones 20.4 anteriores a 20.4R3-S3; Versiones 21.1 anteriores a 21.1R3; Versiones 21.2 anteriores a 21.2R3; Versiones 21.3 anteriores a 21.3R2; Versiones 21.4 anteriores a 21.4R2."}], "id": "CVE-2023-22411", "lastModified": "2026-06-17T05:35:23.387", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-22411", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-07T14:56:14.646968Z", "version": "2.0.3"}}]}, "published": "2023-01-13T00:15:11.377", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA70207"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA70207"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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