{"containers":{"cna":{"affected":[{"platforms":["QFX5000 Series, EX4600 Series"],"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"17.3R3-S12","status":"affected","version":"unspecified","versionType":"custom"},{"lessThan":"17.4R3-S5","status":"affected","version":"17.4","versionType":"custom"},{"lessThan":"18.3R3-S5","status":"affected","version":"18.3","versionType":"custom"},{"lessThan":"18.4R3-S9","status":"affected","version":"18.4","versionType":"custom"},{"lessThan":"19.1R3-S6","status":"affected","version":"19.1","versionType":"custom"},{"lessThan":"19.2R1-S7, 19.2R3-S3","status":"affected","version":"19.2","versionType":"custom"},{"lessThan":"19.3R2-S6, 19.3R3-S3","status":"affected","version":"19.3","versionType":"custom"},{"lessThan":"19.4R1-S4, 19.4R3-S3","status":"affected","version":"19.4","versionType":"custom"},{"lessThan":"20.1R2-S2, 20.1R3-S1","status":"affected","version":"20.1","versionType":"custom"},{"lessThan":"20.2R3-S2","status":"affected","version":"20.2","versionType":"custom"},{"lessThan":"20.3R3","status":"affected","version":"20.3","versionType":"custom"},{"lessThan":"20.4R2-S2, 20.4R3","status":"affected","version":"20.4","versionType":"custom"},{"lessThan":"21.1R1-S1, 21.1R2","status":"affected","version":"21.1","versionType":"custom"}]}],"datePublic":"2021-10-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols (including but not limited to routing-protocols) and lead to a Denial of Service (DoS). Continued receipt of this specific multicast traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 and EX4600 Series: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2."}],"exploits":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-184","description":"CWE-184: Incomplete List of Disallowed Inputs","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2021-10-19T18:17:02.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://kb.juniper.net/JSA11232"}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 17.3R3-S12, 17.4R3-S5, 18.3R3-S5, 18.4R3-S9, 19.1R3-S6, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3-S1, 20.2R3-S2, 20.3R3, 20.4R2-S2, 20.4R3, 21.1R1-S1, 21.1R2, 21.2R1, and all subsequent releases."}],"source":{"advisory":"JSA11232","defect":["1576488"],"discovery":"USER"},"title":"Junos OS: QFX5000 Series and EX4600 Series: Control traffic might be dropped if a high rate of specific multicast traffic is received","workarounds":[{"lang":"en","value":"Please ensure you have a loopback filter applied to drop unneeded multicast traffic.\n\nYou can find further information on such filters in https://www.rfc-editor.org/rfc/rfc6192 and in \"Hardening Junos Devices, 2nd Edition\" at https://www.juniper.net/documentation/jnbooks/us/en/day-one-books"}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"sirt@juniper.net","DATE_PUBLIC":"2021-10-13T16:00:00.000Z","ID":"CVE-2021-31370","STATE":"PUBLIC","TITLE":"Junos OS: QFX5000 Series and EX4600 Series: Control traffic might be dropped if a high rate of specific multicast traffic is received"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS","version":{"version_data":[{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_value":"17.3R3-S12"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"17.4","version_value":"17.4R3-S5"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"18.3","version_value":"18.3R3-S5"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"18.4","version_value":"18.4R3-S9"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"19.1","version_value":"19.1R3-S6"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"19.2","version_value":"19.2R1-S7, 19.2R3-S3"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"19.3","version_value":"19.3R2-S6, 19.3R3-S3"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"19.4","version_value":"19.4R1-S4, 19.4R3-S3"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"20.1","version_value":"20.1R2-S2, 20.1R3-S1"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"20.2","version_value":"20.2R3-S2"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"20.3","version_value":"20.3R3"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"20.4","version_value":"20.4R2-S2, 20.4R3"},{"platform":"QFX5000 Series, EX4600 Series","version_affected":"<","version_name":"21.1","version_value":"21.1R1-S1, 21.1R2"}]}}]},"vendor_name":"Juniper Networks"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols (including but not limited to routing-protocols) and lead to a Denial of Service (DoS). Continued receipt of this specific multicast traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 and EX4600 Series: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2."}]},"exploit":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"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"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-184: Incomplete List of Disallowed Inputs"}]},{"description":[{"lang":"eng","value":"Denial of Service (DoS)"}]}]},"references":{"reference_data":[{"name":"https://kb.juniper.net/JSA11232","refsource":"CONFIRM","url":"https://kb.juniper.net/JSA11232"}]},"solution":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 17.3R3-S12, 17.4R3-S5, 18.3R3-S5, 18.4R3-S9, 19.1R3-S6, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3-S1, 20.2R3-S2, 20.3R3, 20.4R2-S2, 20.4R3, 21.1R1-S1, 21.1R2, 21.2R1, and all subsequent releases."}],"source":{"advisory":"JSA11232","defect":["1576488"],"discovery":"USER"},"work_around":[{"lang":"en","value":"Please ensure you have a loopback filter applied to drop unneeded multicast traffic.\n\nYou can find further information on such filters in https://www.rfc-editor.org/rfc/rfc6192 and in \"Hardening Junos Devices, 2nd Edition\" at https://www.juniper.net/documentation/jnbooks/us/en/day-one-books"}]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T22:55:53.791Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://kb.juniper.net/JSA11232"}]}]},"cveMetadata":{"assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","assignerShortName":"juniper","cveId":"CVE-2021-31370","datePublished":"2021-10-19T18:17:02.210Z","dateReserved":"2021-04-15T00:00:00.000Z","dateUpdated":"2024-09-17T01:26:52.896Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}