{ "containers": { "cna": { "affected": [ { "platforms": [ "EX Series" ], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "15.1R7-S8", "status": "affected", "version": "15.1", "versionType": "custom" } ] }, { "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "17.3R3-S10", "status": "affected", "version": "17.3", "versionType": "custom" }, { "lessThan": "17.4R2-S12, 17.4R3-S4", "status": "affected", "version": "17.4", "versionType": "custom" }, { "lessThan": "18.1R3-S12", "status": "affected", "version": "18.1", "versionType": "custom" }, { "lessThan": "18.2R2-S8, 18.2R3-S6", "status": "affected", "version": "18.2", "versionType": "custom" }, { "lessThan": "18.3R3-S4", "status": "affected", "version": "18.3", "versionType": "custom" }, { "lessThan": "18.4R1-S8, 18.4R2-S6, 18.4R3-S6", "status": "affected", "version": "18.4", "versionType": "custom" }, { "lessThan": "19.1R1-S6, 19.1R2-S2, 19.1R3-S3", "status": "affected", "version": "19.1", "versionType": "custom" }, { "lessThan": "19.2R3-S1", "status": "affected", "version": "19.2", "versionType": "custom" }, { "lessThan": "19.3R2-S5, 19.3R3-S1", "status": "affected", "version": "19.3", "versionType": "custom" }, { "lessThan": "19.4R1-S3, 19.4R2-S3, 19.4R3", "status": "affected", "version": "19.4", "versionType": "custom" }, { "lessThan": "20.1R2", "status": "affected", "version": "20.1", "versionType": "custom" }, { "lessThan": "20.2R1-S3 20.2R2", "status": "affected", "version": "20.2", "versionType": "custom" }, { "lessThan": "20.3R1-S1, 20.3R2", "status": "affected", "version": "20.3", "versionType": "custom" } ] }, { "platforms": [ "SRX Series" ], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "15.1X490-D240", "status": "affected", "version": "15.1X49", "versionType": "custom" } ] }, { "product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [ { "lessThan": "20.3R1-S1-EVO, 20.3R2-EVO", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "configurations": [ { "lang": "en", "value": "The following minimal configuration is required to potentially hit this issue:\n\n protocols bgp family inet flow" } ], "datePublic": "2021-01-13T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Denial of Service (DoS) condition. Continued receipt of these update messages will cause a sustained Denial of Service condition. This issue affects Juniper Networks: Junos OS: All versions prior to 17.3R3-S10 with the exceptions of 15.1X49-D240 on SRX Series and 15.1R7-S8 on EX Series; 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S3, 19.4R2-S3, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Junos OS Evolved: All versions prior to 20.3R1-S1-EVO, 20.3R2-EVO." } ], "exploits": [ { "lang": "en", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "description": "754 - Improper Check for Unusual or Exceptional Conditions", "lang": "en", "type": "text" } ] }, { "descriptions": [ { "description": "Denial of Service (DoS)", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-01-15T17:35:57.000Z", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://kb.juniper.net/JSA11101" } ], "solutions": [ { "lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 15.1R7-S8, 15.1X49-D240, 17.3R3-S10, 17.4R2-S12, 17.4R3-S4, 18.1R3-S12, 18.2R2-S8, 18.2R3-S6, 18.3R3-S4, 18.4R1-S8, 18.4R2-S6, 18.4R3-S6, 19.1R2-S2, 19.1R3-S3, 19.2R3-S1, 19.3R2-S5, 19.3R3-S1, 19.4R1-S3, 19.4R2-S3, 19.4R3, 20.1R2, 20.2R1-S3, 20.2R2, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.3R1-S1-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases." } ], "source": { "advisory": "JSA11101", "defect": [ "1539109" ], "discovery": "USER" }, "title": "Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted.", "workarounds": [ { "lang": "en", "value": "There are no viable workarounds for this issue." } ], "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-2021-0211", "STATE": "PUBLIC", "TITLE": "Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted." }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Junos OS", "version": { "version_data": [ { "platform": "EX Series", "version_affected": "<", "version_name": "15.1", "version_value": "15.1R7-S8" }, { "version_affected": "<", "version_name": "17.3", "version_value": "17.3R3-S10" }, { "version_affected": "<", "version_name": "17.4", "version_value": "17.4R2-S12, 17.4R3-S4" }, { "version_affected": "<", "version_name": "18.1", "version_value": "18.1R3-S12" }, { "version_affected": "<", "version_name": "18.2", "version_value": "18.2R2-S8, 18.2R3-S6" }, { "version_affected": "<", "version_name": "18.3", "version_value": "18.3R3-S4" }, { "version_affected": "<", "version_name": "18.4", "version_value": "18.4R1-S8, 18.4R2-S6, 18.4R3-S6" }, { "version_affected": "<", "version_name": "19.1", "version_value": "19.1R1-S6, 19.1R2-S2, 19.1R3-S3" }, { "version_affected": "<", "version_name": "19.2", "version_value": "19.2R3-S1" }, { "version_affected": "<", "version_name": "19.3", "version_value": "19.3R2-S5, 19.3R3-S1" }, { "version_affected": "<", "version_name": "19.4", "version_value": "19.4R1-S3, 19.4R2-S3, 19.4R3" }, { "version_affected": "<", "version_name": "20.1", "version_value": "20.1R2" }, { "version_affected": "<", "version_name": "20.2", "version_value": "20.2R1-S3 20.2R2" }, { "version_affected": "<", "version_name": "20.3", "version_value": "20.3R1-S1, 20.3R2" }, { "platform": "SRX Series", "version_affected": "<", "version_name": "15.1X49", "version_value": "15.1X490-D240" } ] } }, { "product_name": "Junos OS Evolved", "version": { "version_data": [ { "version_affected": "<", "version_value": "20.3R1-S1-EVO, 20.3R2-EVO" } ] } } ] }, "vendor_name": "Juniper Networks" } ] } }, "configuration": [ { "lang": "en", "value": "The following minimal configuration is required to potentially hit this issue:\n\n protocols bgp family inet flow" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Denial of Service (DoS) condition. Continued receipt of these update messages will cause a sustained Denial of Service condition. This issue affects Juniper Networks: Junos OS: All versions prior to 17.3R3-S10 with the exceptions of 15.1X49-D240 on SRX Series and 15.1R7-S8 on EX Series; 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S3, 19.4R2-S3, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Junos OS Evolved: All versions prior to 20.3R1-S1-EVO, 20.3R2-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": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "754 - Improper Check for Unusual or Exceptional Conditions" } ] }, { "description": [ { "lang": "eng", "value": "Denial of Service (DoS)" } ] } ] }, "references": { "reference_data": [ { "name": "https://kb.juniper.net/JSA11101", "refsource": "CONFIRM", "url": "https://kb.juniper.net/JSA11101" } ] }, "solution": [ { "lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 15.1R7-S8, 15.1X49-D240, 17.3R3-S10, 17.4R2-S12, 17.4R3-S4, 18.1R3-S12, 18.2R2-S8, 18.2R3-S6, 18.3R3-S4, 18.4R1-S8, 18.4R2-S6, 18.4R3-S6, 19.1R2-S2, 19.1R3-S3, 19.2R3-S1, 19.3R2-S5, 19.3R3-S1, 19.4R1-S3, 19.4R2-S3, 19.4R3, 20.1R2, 20.2R1-S3, 20.2R2, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.3R1-S1-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases." } ], "source": { "advisory": "JSA11101", "defect": [ "1539109" ], "discovery": "USER" }, "work_around": [ { "lang": "en", "value": "There are no viable workarounds for this issue." } ] } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:32:10.098Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://kb.juniper.net/JSA11101" } ] } ] }, "cveMetadata": { "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-0211", "datePublished": "2021-01-15T17:35:57.520Z", "dateReserved": "2020-10-27T00:00:00.000Z", "dateUpdated": "2024-09-16T20:52:46.854Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }