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The issue is caused by malformed MLD packets looping on a multi-homed Ethernet Segment Identifier (ESI) when VXLAN is configured. These MLD packets received on a multi-homed ESI are sent to the peer, and then incorrectly forwarded out the same ESI, violating the split horizon rule. This issue only affects QFX10K Series switches, including the QFX10002, QFX10008, and QFX10016. Other products and platforms are unaffected by this vulnerability. This issue affects Juniper Networks Junos OS on QFX10K Series: All versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R1-S9, 19.2R3-S5; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R2-S7, 19.4R3-S8; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2-S1, 21.2R3; 21.3 versions prior to 21.3R2."}, {"lang": "es", "value": "Una vulnerabilidad de Comprobaci\u00f3n Inapropiada de Condiciones Inusuales o Excepcionales en el Motor de Reenv\u00edo de Paquetes (PFE) del Sistema Operativo Junos de Juniper Networks permite a un atacante adyacente no autenticado causar una Denegaci\u00f3n de Servicio (DoS). El problema es causado por los paquetes MLD malformados que entran en bucle en un identificador de segmento Ethernet (ESI) con varios hogares cuando es configurado VXLAN. Estos paquetes MLD recibidos en un ESI multi-homed son enviados al peer, y luego son reenviados incorrectamente fuera del mismo ESI, violando la regla de horizonte dividido. Este problema s\u00f3lo afecta a switches de la serie QFX10K, incluidos los QFX10002, QFX10008 y QFX10016. Otros productos y plataformas no est\u00e1n afectados por esta vulnerabilidad. Este problema afecta al Sistema Operativo Junos de Juniper Networks en la serie QFX10K: Todas las versiones anteriores a 19.1R3-S9; las versiones 19.2 anteriores a 19.2R1-S9, 19.2R3-S5; las versiones 19.3 anteriores a 19.3R3-S6; las versiones 19.4 anteriores a 19.4R2-S, 19.4R3-S8; las versiones 20.1 anteriores a 20.1R3-S4; las versiones 20. 2 versiones anteriores a 20.2R3-S4; 20.3 versiones anteriores a 20.3R3-S2; 20.4 versiones anteriores a 20.4R3-S2; 21.1 versiones anteriores a 21.1R3; 21.2 versiones anteriores a 21.2R2-S1, 21.2R3; 21.3 versiones anteriores a 21.3R2"}], "id": "CVE-2022-22217", "lastModified": "2022-07-29T17:34:55.317", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2022-07-20T15:15:09.060", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA69721"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "sirt@juniper.net", "type": "Primary"}]}

{}