{"containers":{"cna":{"affected":[{"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"17.3R3-S10","status":"affected","version":"unspecified","versionType":"custom"},{"lessThan":"17.4R3-S2","status":"affected","version":"17.4","versionType":"custom"},{"lessThan":"18.1R3-S10","status":"affected","version":"18.1","versionType":"custom"},{"lessThan":"18.2R2-S7, 18.2R3-S4","status":"affected","version":"18.2","versionType":"custom"},{"lessThan":"18.3R3-S2","status":"affected","version":"18.3","versionType":"custom"},{"lessThan":"18.4R1-S8, 18.4R2-S6, 18.4R3-S2","status":"affected","version":"18.4","versionType":"custom"},{"lessThan":"19.1R1-S5, 19.1R3-S3","status":"affected","version":"19.1","versionType":"custom"},{"lessThan":"19.2R3","status":"affected","version":"19.2","versionType":"custom"},{"lessThan":"19.3R2-S5, 19.3R3","status":"affected","version":"19.3","versionType":"custom"},{"lessThan":"19.4R2-S2, 19.4R3-S1","status":"affected","version":"19.4","versionType":"custom"},{"lessThan":"20.1R1-S4, 20.1R2","status":"affected","version":"20.1","versionType":"custom"}]},{"platforms":["SRX Series"],"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"15.1X49-D240","status":"affected","version":"15.1X49","versionType":"custom"}]},{"product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"19.3R2-S5-EVO","status":"affected","version":"19.3","versionType":"custom"},{"lessThan":"19.4R2-S2-EVO","status":"affected","version":"19.4","versionType":"custom"},{"lessThan":"20.1R1-S4-EVO","status":"affected","version":"20.1","versionType":"custom"}]}],"configurations":[{"lang":"en","value":"The following are examples of minimal configurations: \n  [protocols mpls label-switched-path <lsp-name> corouted-bidirectional;]\nor\n  [logical-systems <logical-system-name> protocols mpls label-switched-path <lsp-name> corouted-bidirectional;]"}],"datePublic":"2021-01-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the Denial of Service. This issue affects: Juniper Networks Junos OS: All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R3-S3; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R1-S4, 20.1R2; 15.1X49 versions prior to 15.1X49-D240 on SRX Series. Juniper Networks Junos OS Evolved: 19.3 versions prior to 19.3R2-S5-EVO; 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S4-EVO."}],"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":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2021-01-15T17:35:55.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://kb.juniper.net/JSA11098"},{"tags":["x_refsource_MISC"],"url":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/disable-edit-protocols-rsvp.html"},{"tags":["x_refsource_MISC"],"url":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/corouted-bidirectional-edit-protocols-mpls.html"}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: \nJunos OS: 15.1X49-D240, 17.3R3-S10, 17.4R3-S2, 18.1R3-S10, 18.2R2-S7, 18.2R3-S4, 18.3R3-S2, 18.4R1-S8, 18.4R2-S6, 18.4R3-S2, 19.1R1-S5, 19.1R3-S3, 19.2R3, 19.3R2-S5, 19.3R3, 19.4R2-S2, 19.4R3-S1, 20.1R1-S4, 20.1R2, 20.2R1, and all subsequent releases.\n\nNote: With the exception of SRX Series products using version 15.1X49-D240, all products using Junos OS prior to 17.3R3-S10 are affected and will not be fixed by Juniper Networks, Inc.\n\nJunos OS Evolved: 19.3R2-S5-EVO, 19.4R2-S2-EVO, 20.1R1-S4-EVO, and all subsequent releases."}],"source":{"advisory":"JSA11098","defect":["1493718"],"discovery":"USER"},"title":"Junos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet.","workarounds":[{"lang":"en","value":"If bidirectional LSPs are running in the network, when changing family mpls maximum-labels on an interface, first disable RSVP for this interface.\nYou can include the disable statement at the following hierarchy levels:\n    [edit protocols rsvp interface interface-name ]\n    [edit logical-systems logical-system-name protocols rsvp interface interface-name ]\n\nSee the MPLS RSVP disable configuration guide for further details."}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"sirt@juniper.net","DATE_PUBLIC":"2021-01-13T17:00:00.000Z","ID":"CVE-2021-0208","STATE":"PUBLIC","TITLE":"Junos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet."},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS","version":{"version_data":[{"version_affected":"<","version_value":"17.3R3-S10"},{"version_affected":"<","version_name":"17.4","version_value":"17.4R3-S2"},{"version_affected":"<","version_name":"18.1","version_value":"18.1R3-S10"},{"version_affected":"<","version_name":"18.2","version_value":"18.2R2-S7, 18.2R3-S4"},{"version_affected":"<","version_name":"18.3","version_value":"18.3R3-S2"},{"version_affected":"<","version_name":"18.4","version_value":"18.4R1-S8, 18.4R2-S6, 18.4R3-S2"},{"version_affected":"<","version_name":"19.1","version_value":"19.1R1-S5, 19.1R3-S3"},{"version_affected":"<","version_name":"19.2","version_value":"19.2R3"},{"version_affected":"<","version_name":"19.3","version_value":"19.3R2-S5, 19.3R3"},{"version_affected":"<","version_name":"19.4","version_value":"19.4R2-S2, 19.4R3-S1"},{"version_affected":"<","version_name":"20.1","version_value":"20.1R1-S4, 20.1R2"},{"platform":"SRX Series","version_affected":"<","version_name":"15.1X49","version_value":"15.1X49-D240"}]}},{"product_name":"Junos OS Evolved","version":{"version_data":[{"version_affected":"<","version_name":"19.3","version_value":"19.3R2-S5-EVO"},{"version_affected":"<","version_name":"19.4","version_value":"19.4R2-S2-EVO"},{"version_affected":"<","version_name":"20.1","version_value":"20.1R1-S4-EVO"}]}}]},"vendor_name":"Juniper Networks"}]}},"configuration":[{"lang":"en","value":"The following are examples of minimal configurations: \n  [protocols mpls label-switched-path <lsp-name> corouted-bidirectional;]\nor\n  [logical-systems <logical-system-name> protocols mpls label-switched-path <lsp-name> corouted-bidirectional;]"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the Denial of Service. This issue affects: Juniper Networks Junos OS: All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R3-S3; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R1-S4, 20.1R2; 15.1X49 versions prior to 15.1X49-D240 on SRX Series. Juniper Networks Junos OS Evolved: 19.3 versions prior to 19.3R2-S5-EVO; 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S4-EVO."}]},"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":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20: Improper Input Validation"}]},{"description":[{"lang":"eng","value":"Denial of Service (DoS)"}]}]},"references":{"reference_data":[{"name":"https://kb.juniper.net/JSA11098","refsource":"CONFIRM","url":"https://kb.juniper.net/JSA11098"},{"name":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/disable-edit-protocols-rsvp.html","refsource":"MISC","url":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/disable-edit-protocols-rsvp.html"},{"name":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/corouted-bidirectional-edit-protocols-mpls.html","refsource":"MISC","url":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/corouted-bidirectional-edit-protocols-mpls.html"}]},"solution":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: \nJunos OS: 15.1X49-D240, 17.3R3-S10, 17.4R3-S2, 18.1R3-S10, 18.2R2-S7, 18.2R3-S4, 18.3R3-S2, 18.4R1-S8, 18.4R2-S6, 18.4R3-S2, 19.1R1-S5, 19.1R3-S3, 19.2R3, 19.3R2-S5, 19.3R3, 19.4R2-S2, 19.4R3-S1, 20.1R1-S4, 20.1R2, 20.2R1, and all subsequent releases.\n\nNote: With the exception of SRX Series products using version 15.1X49-D240, all products using Junos OS prior to 17.3R3-S10 are affected and will not be fixed by Juniper Networks, Inc.\n\nJunos OS Evolved: 19.3R2-S5-EVO, 19.4R2-S2-EVO, 20.1R1-S4-EVO, and all subsequent releases."}],"source":{"advisory":"JSA11098","defect":["1493718"],"discovery":"USER"},"work_around":[{"lang":"en","value":"If bidirectional LSPs are running in the network, when changing family mpls maximum-labels on an interface, first disable RSVP for this interface.\nYou can include the disable statement at the following hierarchy levels:\n    [edit protocols rsvp interface interface-name ]\n    [edit logical-systems logical-system-name protocols rsvp interface interface-name ]\n\nSee the MPLS RSVP disable configuration guide for further details."}]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T15:32:10.107Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://kb.juniper.net/JSA11098"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/disable-edit-protocols-rsvp.html"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/corouted-bidirectional-edit-protocols-mpls.html"}]}]},"cveMetadata":{"assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","assignerShortName":"juniper","cveId":"CVE-2021-0208","datePublished":"2021-01-15T17:35:55.492Z","dateReserved":"2020-10-27T00:00:00.000Z","dateUpdated":"2024-09-16T18:24:25.557Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}