CVE-2023-22410

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Juniper Networks Junos OS on MX Series platforms with MPC10/MPC11 line cards, allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). Devices are only vulnerable when the Suspicious Control Flow Detection (scfd) feature is enabled. Upon enabling this specific feature, an attacker sending specific traffic is causing memory to be allocated dynamically and it is not freed. Memory is not freed even after deactivating this feature. Sustained processing of such traffic will eventually lead to an out of memory condition that prevents all services from continuing to function, and requires a manual restart to recover. The FPC memory usage can be monitored using the CLI command \"show chassis fpc\". On running the above command, the memory of AftDdosScfdFlow can be observed to detect the memory leak. This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 20.2R3-S5; 20.3 version 20.3R1 and later versions."}, {"lang": "es", "value": "Una vulnerabilidad de Missing Release of Memory after Effective Lifetime en Juniper Networks Junos OS en plataformas de la serie MX con tarjetas de l\u00ednea MPC10/MPC11 permite que un atacante adyacente no autenticado provoque una denegaci\u00f3n de servicio (DoS). Los dispositivos solo son vulnerables cuando la funci\u00f3n Detecci\u00f3n de flujo de control sospechoso (scfd) est\u00e1 habilitada. Al habilitar esta caracter\u00edstica espec\u00edfica, un atacante que env\u00eda tr\u00e1fico espec\u00edfico hace que la memoria se asigne din\u00e1micamente y no se libere. La memoria no se libera incluso despu\u00e9s de desactivar esta funci\u00f3n. El procesamiento sostenido de dicho tr\u00e1fico eventualmente conducir\u00e1 a una condici\u00f3n de falta de memoria que impedir\u00e1 que todos los servicios sigan funcionando y requerir\u00e1 un reinicio manual para recuperarse. El uso de la memoria FPC se puede monitorear usando el comando CLI \"show chasis fpc\". Al ejecutar el comando anterior, se puede observar la memoria de AftDdosScfdFlow para detectar la p\u00e9rdida de memoria. Este problema afecta a Juniper Networks Junos OS en la serie MX: todas las versiones anteriores a 20.2R3-S5; 20.3 versi\u00f3n 20.3R1 y versiones posteriores."}], "id": "CVE-2023-22410", "lastModified": "2026-06-17T05:35:23.220", "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"}, {"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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-22410", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-07T14:57:11.910284Z", "version": "2.0.3"}}]}, "published": "2023-01-13T00:15:11.303", "references": [{"source": "sirt@juniper.net", "tags": ["Exploit", "Vendor Advisory"], "url": "https://kb.juniper.net/JSA70206"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://kb.juniper.net/JSA70206"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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