CVE-2020-1667

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Due to this vulnerability, mspmand process, responsible for managing \"URL Filtering service\", can crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R3-S1; 18.4 versions prior to 18.4R3; 19.1 versions prior to 19.1R3; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3. 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"operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process might be bypassed due to a race condition. Due to this vulnerability, mspmand process, responsible for managing \"URL Filtering service\", can crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R3-S1; 18.4 versions prior to 18.4R3; 19.1 versions prior to 19.1R3; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3. This issue does not affect Juniper Networks Junos OS 17.4, 18.1, and 18.2."}, {"lang": "es", "value": "Cuando el filtrado de DNS est\u00e1 habilitado en Juniper Networks Junos MX Series con una de las siguientes tarjetas MS-PIC, MS-MIC o MS-MPC, un flujo entrante de paquetes procesados ??por el proceso Multiservices PIC Management Daemon (mspmand) puede ser omitido debido a una condici\u00f3n de carrera.&#xa0;Debido a esta vulnerabilidad, el proceso mspmand, responsable de administrar el \"URL Filtering service\", puede bloquearse y causar que el Services PIC se reinicie.&#xa0;Mientras Services PIC se reinicia, todos los servicios PIC, incluyendo el servicio de filtrado de DNS (hundimiento de DNS), ser\u00e1n omitidos hasta que el Services PIC complete su proceso de inicio.&#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S8;&#xa0;versiones 18.3 anteriores a 18.3R3-S1;&#xa0;versiones 18.4 anteriores a 18.4R3;&#xa0;versiones 19.1 anteriores a 19.1R3;&#xa0;versiones 19.2 anteriores a 19.2R2;&#xa0;versiones 19.3 anteriores a 19.3R3"}], "id": "CVE-2020-1667", "lastModified": "2026-06-17T03:02:09.480", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:N/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.7, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2020-10-16T21:15:12.753", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/"}, {"source": "nvd@nist.gov", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11064&cat=MX_SERIES&actp=LIST"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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