Show plain JSON{"containers": {"cna": {"affected": [{"product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "19.4R1", "status": "unaffected", "version": "unspecified", "versionType": "custom"}, {"changes": [{"at": "19.4R1-S4, 19.4R3-S2", "status": "unaffected"}], "lessThan": "19.4*", "status": "affected", "version": "19.4R1", "versionType": "custom"}, {"lessThan": "20.1R2-S1, 20.1R3", "status": "affected", "version": "20.1", "versionType": "custom"}, {"lessThan": "20.2R2-S2, 20.2R3", "status": "affected", "version": "20.2", "versionType": "custom"}, {"lessThan": "20.3R2", "status": "affected", "version": "20.3", "versionType": "custom"}]}, {"product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [{"lessThan": "19.4R1-EVO", "status": "unaffected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "19.4*", "status": "affected", "version": "19.4R1-EVO", "versionType": "custom"}, {"lessThan": "20.1*", "status": "affected", "version": "20.1R1-EVO", "versionType": "custom"}, {"lessThan": "20.2*", "status": "affected", "version": "20.2R1-EVO", "versionType": "custom"}, {"lessThan": "20.3R2-EVO", "status": "affected", "version": "20.3", "versionType": "custom"}, {"lessThan": "20.4R2-EVO", "status": "affected", "version": "20.4", "versionType": "custom"}]}], "configurations": [{"lang": "en", "value": "The two config stanzas required to be affected by this issue are shown below:\n\n [ routing-options flex-algorithm <name> ]\n [ protocols isis source-packet-routing sensor-based-stats per-sid egress ]"}], "datePublic": "2021-07-14T00:00:00", "descriptions": [{"lang": "en", "value": "In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link flaps will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 19.4 versions prior to 19.4R1-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; Juniper Networks Junos OS Evolved: 20.3-EVO versions prior to 20.3R2-EVO; 20.4-EVO versions prior to 20.4R2-EVO. This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-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": 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-754", "description": "CWE-754 Improper Check for Unusual or Exceptional Conditions", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-07-15T20:01:01", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://kb.juniper.net/JSA11189"}], "solutions": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 19.4R1-S4, 19.4R3-S2, 20.1R2-S1, 20.1R3, 20.2R2-S2, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.3R2-EVO, 20.4R2-EVO, 21.1R1-EVO, and all subsequent releases."}], "source": {"advisory": "JSA11189", "defect": ["1555627"], "discovery": "USER"}, "title": "Junos OS and Junos OS Evolved: RPD could crash in SR-ISIS/MPLS environment due to a flap of an ISIS link in the network", "workarounds": [{"lang": "en", "value": "Disabling IS-IS Flexible Algorithm for Segment Routing or sensor-based statistics will mitigate this issue."}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "sirt@juniper.net", "DATE_PUBLIC": "2021-07-14T16:00:00.000Z", "ID": "CVE-2021-0287", "STATE": "PUBLIC", "TITLE": "Junos OS and Junos OS Evolved: RPD could crash in SR-ISIS/MPLS environment due to a flap of an ISIS link in the network"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Junos OS", "version": {"version_data": [{"version_affected": ">", "version_name": "19.4", "version_value": "19.4R1"}, {"version_affected": "<", "version_name": "19.4", "version_value": "19.4R1-S4, 19.4R3-S2"}, {"version_affected": "<", "version_name": "20.1", "version_value": "20.1R2-S1, 20.1R3"}, {"version_affected": "<", "version_name": "20.2", "version_value": "20.2R2-S2, 20.2R3"}, {"version_affected": "<", "version_name": "20.3", "version_value": "20.3R2"}, {"version_affected": "!<", "version_value": "19.4R1"}]}}, {"product_name": "Junos OS Evolved", "version": {"version_data": [{"version_affected": ">", "version_name": "19.4", "version_value": "19.4R1-EVO"}, {"version_affected": ">", "version_name": "20.1", "version_value": "20.1R1-EVO"}, {"version_affected": ">", "version_name": "20.2", "version_value": "20.2R1-EVO"}, {"version_affected": "<", "version_name": "20.3", "version_value": "20.3R2-EVO"}, {"version_affected": "<", "version_name": "20.4", "version_value": "20.4R2-EVO"}, {"version_affected": "!<", "version_value": "19.4R1-EVO"}]}}]}, "vendor_name": "Juniper Networks"}]}}, "configuration": [{"lang": "en", "value": "The two config stanzas required to be affected by this issue are shown below:\n\n [ routing-options flex-algorithm <name> ]\n [ protocols isis source-packet-routing sensor-based-stats per-sid egress ]"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link flaps will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 19.4 versions prior to 19.4R1-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; Juniper Networks Junos OS Evolved: 20.3-EVO versions prior to 20.3R2-EVO; 20.4-EVO versions prior to 20.4R2-EVO. This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-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": 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-754 Improper Check for Unusual or Exceptional Conditions"}]}]}, "references": {"reference_data": [{"name": "https://kb.juniper.net/JSA11189", "refsource": "CONFIRM", "url": "https://kb.juniper.net/JSA11189"}]}, "solution": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 19.4R1-S4, 19.4R3-S2, 20.1R2-S1, 20.1R3, 20.2R2-S2, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.3R2-EVO, 20.4R2-EVO, 21.1R1-EVO, and all subsequent releases."}], "source": {"advisory": "JSA11189", "defect": ["1555627"], "discovery": "USER"}, "work_around": [{"lang": "en", "value": "Disabling IS-IS Flexible Algorithm for Segment Routing or sensor-based statistics will mitigate this issue."}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:32:10.669Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://kb.juniper.net/JSA11189"}]}]}, "cveMetadata": {"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-0287", "datePublished": "2021-07-15T20:01:01.666061Z", "dateReserved": "2020-10-27T00:00:00", "dateUpdated": "2024-09-16T19:10:44.968Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}