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When specific valid SIP packets are received the PFE will crash and restart. This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1."}, {"lang": "es", "value": "Una vulnerabilidad de acceso de puntero no inicializado en SIP Application Layer Gateway (ALG) de Juniper Networks Junos OS en las series SRX y MX permite a un atacante no autenticado y basado en la red causar una Denegaci\u00f3n de Servicio (DoS). Cuando son recibidos determinados paquetes SIP v\u00e1lidos, el ALG es bloqueado y es reiniciado. Este problema afecta a Juniper Networks Junos OS en las series SRX y MX: versiones 20.4 anteriores a 20.4R3-S4; versiones 21.1 anteriores a 21.1R3-S2; versiones 21.2 anteriores a 21.2R3-S2; versiones 21.3 anteriores a 21.3R2-S2, 21.3R3; versiones 21.4 anteriores a 21.4R1-S2, 21.4R2; versiones 22.1 anteriores a 22.1R1-S1, 22.1R2. Este problema no afecta a Juniper Networks Junos OS versiones anteriores a 20.4R1"}], "id": "CVE-2022-22236", "lastModified": "2024-11-21T06:46:27.443", "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"}]}, "published": "2022-10-18T03:15:10.603", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA69892"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA69892"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-824"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-824"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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