{"containers": {"cna": {"affected": [{"platforms": ["MX Series"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"status": "affected", "version": "14.1X55 from 14.1X55-D30 prior to 14.1X55-D35"}, {"status": "affected", "version": "14.2R from 14.2R7 prior to 14.2R7-S4, 14.2R8"}, {"status": "affected", "version": "15.1R from 15.1R5 prior to 15.1R5-S2, 15.1R6"}, {"status": "affected", "version": "16.1R from 16.1R2 prior to 16.1R3-S2, 16.1R4"}]}], "datePublic": "2017-07-12T00:00:00", "descriptions": [{"lang": "en", "value": "An MS-MPC or MS-MIC Service PIC may crash when large fragmented packets are passed through an Application Layer Gateway (ALG). Repeated crashes of the Service PC can result in an extended denial of service condition. The issue can be seen only if NAT or stateful-firewall rules are configured with ALGs enabled. This issue was caused by the code change for PR 1182910 in Junos OS 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5, and 16.1R2. 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Affected releases are Juniper Networks Junos OS on MX platforms running: 14.1X55 from 14.1X55-D30 to releases prior to 14.1X55-D35; 14.2R from 14.2R7 to releases prior to 14.2R7-S4, 14.2R8; 15.1R from 15.1R5 to releases prior to 15.1R5-S2, 15.1R6; 16.1R from 16.1R2 to releases prior to 16.1R3-S2, 16.1R4."}], "metrics": [{"cvssV3_0": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"description": "Denial of service", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-07-15T09:57:01", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper"}, "references": [{"name": "1038895", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1038895"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://kb.juniper.net/JSA10794"}], "title": "MS-MPC or MS-MIC crash when passing large fragmented traffic through an ALG", "workarounds": [{"lang": "en", "value": "There are no viable workarounds for this issue.\n\nIf NAT and stateful-firewall are not required, disabling them in the [edit applications] stanza will mitigate this issue.\n\nIt is good security practice to limit the exploitable attack surface of critical infrastructure networking equipment. 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Affected releases are Juniper Networks Junos OS on MX platforms running: 14.1X55 from 14.1X55-D30 to releases prior to 14.1X55-D35; 14.2R from 14.2R7 to releases prior to 14.2R7-S4, 14.2R8; 15.1R from 15.1R5 to releases prior to 15.1R5-S2, 15.1R6; 16.1R from 16.1R2 to releases prior to 16.1R3-S2, 16.1R4."}]}, "exploit": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.", "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Denial of service"}]}]}, "references": {"reference_data": [{"name": "1038895", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1038895"}, {"name": "https://kb.juniper.net/JSA10794", "refsource": "CONFIRM", "url": "https://kb.juniper.net/JSA10794"}]}, "solution": "The following software releases have been updated to resolve this specific issue: 14.1X55-D35, 14.2R7-S4, 14.2R8, 15.1R5-S2, 15.1R6, 16.1R3-S2, 16.1R4, and all subsequent releases.\n\nThis issue is being tracked as PR 1214134 and is visible on the Customer Support website.", "work_around": [{"lang": "en", "value": "There are no viable workarounds for this issue.\n\nIf NAT and stateful-firewall are not required, disabling them in the [edit applications] stanza will mitigate this issue.\n\nIt is good security practice to limit the exploitable attack surface of critical infrastructure networking equipment. 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Los bloqueos repetidos del equipo de servicio pueden resultar en una condici\u00f3n de denegaci\u00f3n de servicio extendida. El problema se puede visualizar solamente si el NAT o las reglas del Cortafuegos con estado se configuran con la ALG habilitada. Este problema fue causado por el cambio de c\u00f3digo para PR 1182910 en Junos OS versiones 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5 y 16.1R2. Ninguna otra versi\u00f3n del sistema operativo Junos y ning\u00fan otro producto o plataforma de Juniper Networks est\u00e1n afectados por este problema. 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