CVE-2024-39559

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"negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS Evolved may allow a network-based unauthenticated attacker to crash the device (vmcore) by sending a specific TCP packet over an established TCP session with MD5 authentication enabled, destined to an accessible port on the device, resulting in a Denial of Service (DoS).\u00a0 The receipt of this packet must occur within a specific timing window outside the attacker's control (i.e., race condition).\n\nContinued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nThis issue only affects\u00a0dual RE systems with Nonstop Active Routing (NSR) enabled.\nExploitation can only occur over TCP sessions with MD5 authentication enabled (e.g., BGP with MD5 authentication).\n\nThis issue affects Junos OS Evolved:\u00a0\n\n\n\n * All versions before 21.2R3-S8-EVO, \n * from 21.4-EVO before 21.4R3-S6-EVO, \n * from 22.1-EVO before 22.1R3-S4-EVO, \n * from 22.2-EVO before 22.2R3-S4-EVO, \n * from 22.3-EVO before 22.3R3-S3-EVO, \n * from 22.4-EVO before 22.4R2-S2-EVO, 22.4R3-EVO."}, {"lang": "es", "value": "Una vulnerabilidad de verificaci\u00f3n inadecuada de condiciones inusuales o excepcionales en el procesamiento de paquetes de Juniper Networks Junos OS Evolved puede permitir que un atacante no autenticado basado en red bloquee el dispositivo (vmcore) enviando un paquete TCP espec\u00edfico a trav\u00e9s de una sesi\u00f3n TCP establecida con la autenticaci\u00f3n MD5 habilitada, destinada a un puerto accesible en el dispositivo, lo que resulta en una Denegaci\u00f3n de Servicio (DoS). La recepci\u00f3n de este paquete debe ocurrir dentro de una ventana de tiempo espec\u00edfica fuera del control del atacante (es decir, condici\u00f3n de ejecuci\u00f3n). La recepci\u00f3n y procesamiento continuo de este paquete crear\u00e1 una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS). Este problema solo afecta a los sistemas RE duales con el enrutamiento activo ininterrumpido (NSR) habilitado. La explotaci\u00f3n s\u00f3lo puede ocurrir a trav\u00e9s de sesiones TCP con autenticaci\u00f3n MD5 habilitada (por ejemplo, BGP con autenticaci\u00f3n MD5). Este problema afecta a Junos OS Evolved: * Todas las versiones anteriores a 21.2R3-S8-EVO, * desde 21.4-EVO anteriores a 21.4R3-S6-EVO, * desde 22.1-EVO anteriores a 22.1R3-S4-EVO, * desde 22.2-EVO anteriores 22.2R3-S4-EVO, * de 22.3-EVO antes de 22.3R3-S3-EVO, * de 22.4-EVO antes de 22.4R2-S2-EVO, 22.4R3-EVO."}], "id": "CVE-2024-39559", "lastModified": "2026-06-17T07:42:13.750", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "sirt@juniper.net", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-39559", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-07-11T18:58:52.449170Z", "version": "2.0.3"}}]}, "published": "2024-07-10T23:15:12.863", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA83019"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA83019"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-754"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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