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{"cveTags": [], "descriptions": [{"lang": "en", "value": "A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in the AgentD process of Juniper Networks Junos OS allows an attacker who is already causing impact to established sessions which generates counter changes picked up by the AgentD process during telemetry polling, to move the AgentD process into a state where AgentD attempts to reap an already destroyed sensor. This reaping attempt then leads to memory corruption causing the FPC to crash which is a Denial of Service (DoS).\n\n\n\n\n\nThe FPC will recover automatically without user intervention after the crash.\nThis issue affects Junos OS:\u00a0\n\n  *  All versions before\u00a021.4R3-S9\n  *  From 22.2 before 22.2R3-S5,\n  *  From 22.3 before 22.3R3-S4,\n  *  From 22.4 before 22.4R3-S3,\n  *  From 23.2 before 23.2R2-S2,\n  *  From 23.4 before 23.4R2.\n\n\nThis issue does not affect Junos OS Evolved."}, {"lang": "es", "value": "Una vulnerabilidad de condici\u00f3n de ejecuci\u00f3n de tiempo de verificaci\u00f3n y tiempo de uso (TOCTOU) en el proceso AgentD de Juniper Networks Junos OS permite a un atacante que ya est\u00e1 causando impacto en sesiones establecidas que generan cambios de contador detectados por el proceso AgentD durante el sondeo de telemetr\u00eda, mover el proceso AgentD a un estado donde AgentD intenta cosechar un sensor ya destruido. Este intento de cosecha luego conduce a la corrupci\u00f3n de la memoria que hace que el FPC se bloquee, lo que es una denegaci\u00f3n de servicio (DoS). El FPC se recuperar\u00e1 autom\u00e1ticamente sin la intervenci\u00f3n del usuario despu\u00e9s del bloqueo. Este problema afecta a Junos OS: * Todas las versiones anteriores a 21.4R3-S9 * Desde 22.2 antes de 22.2R3-S5, * Desde 22.3 antes de 22.3R3-S4, * Desde 22.4 antes de 22.4R3-S3, * Desde 23.2 antes de 23.2R2-S2, * Desde 23.4 antes de 23.4R2. Este problema no afecta a Junos OS Evolved."}], "id": "CVE-2024-47494", "lastModified": "2024-10-15T12:58:51.050", "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": "Primary"}], "cvssMetricV40": [{"cvssData": {"attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "automatable": "YES", "availabilityRequirements": "NOT_DEFINED", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityRequirements": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirements": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubsequentSystemAvailability": "NOT_DEFINED", "modifiedSubsequentSystemConfidentiality": "NOT_DEFINED", "modifiedSubsequentSystemIntegrity": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnerableSystemAvailability": "NOT_DEFINED", "modifiedVulnerableSystemConfidentiality": "NOT_DEFINED", "modifiedVulnerableSystemIntegrity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "GREEN", "recovery": "AUTOMATIC", "safety": "NOT_DEFINED", "subsequentSystemAvailability": "NONE", "subsequentSystemConfidentiality": "NONE", "subsequentSystemIntegrity": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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:Y/R:A/V:X/RE:L/U:Green", "version": "4.0", "vulnerabilityResponseEffort": "LOW", "vulnerableSystemAvailability": "HIGH", "vulnerableSystemConfidentiality": "NONE", "vulnerableSystemIntegrity": "NONE"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2024-10-11T16:15:09.580", "references": [{"source": "sirt@juniper.net", "url": "https://supportportal.juniper.net/JSA88121"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "sirt@juniper.net", "type": "Primary"}]}

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