CVE-2021-31374

{"containers": {"cna": {"affected": [{"product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "17.3R3-S11", "status": "affected", "version": "17.3", "versionType": "custom"}, {"lessThan": "17.4R2-S13, 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-S7", "status": "affected", "version": "18.2", "versionType": "custom"}, {"lessThan": "18.3R3-S4", "status": "affected", "version": "18.3", "versionType": "custom"}, {"lessThan": "18.4R1-S8, 18.4R2-S7, 18.4R3-S7", "status": "affected", "version": "18.4", "versionType": "custom"}, {"lessThan": "19.1R1-S6, 19.1R2-S2, 19.1R3-S4", "status": "affected", "version": "19.1", "versionType": "custom"}, {"lessThan": "19.2R1-S6, 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-S4, 19.4R2-S3, 19.4R3-S1", "status": "affected", "version": "19.4", "versionType": "custom"}, {"lessThan": "20.1R2", "status": "affected", "version": "20.1", "versionType": "custom"}, {"lessThan": "20.2R2", "status": "affected", "version": "20.2", "versionType": "custom"}, {"lessThan": "20.3R1-S1, 20.3R2", "status": "affected", "version": "20.3", "versionType": "custom"}]}, {"product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [{"lessThan": "20.3R2-EVO", "status": "affected", "version": "20.3", "versionType": "custom"}]}], "configurations": [{"lang": "en", "value": "The following minimal configuration is necessary:\n\n* Must be running Junos OS or Junos OS Evolved.\n* A BGP peering session is established."}], "datePublic": "2021-10-13T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this message will create a sustained Denial of Service (DoS) condition. This issue affects both IBGP and EBGP deployments over IPv4 or IPv6. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: 20.3 versions prior to 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": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"description": "Denial of Service (DoS)", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-10-19T18:17:11.000Z", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://kb.juniper.net/JSA11239"}], "solutions": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \nJunos OS: 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 18.1R3-S12, 18.2R2-S8, 18.3R3-S4, 18.4R1-S8, 18.4R2-S7, 18.4R3-S7, 19.1R1-S6, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S1, 19.3R2-S5, 19.3R3-S1, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1, 20.1R2, 20.1R3, 20.2R2, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.3R2-EVO and all subsequent releases."}], "source": {"advisory": "JSA11239", "defect": ["1543234"], "discovery": "INTERNAL"}, "title": "Junos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE or KEEPALIVE message.", "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": "2021-10-13T16:00:00.000Z", "ID": "CVE-2021-31374", "STATE": "PUBLIC", "TITLE": "Junos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE or KEEPALIVE message."}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Junos OS", "version": {"version_data": [{"version_affected": "<", "version_name": "17.3", "version_value": "17.3R3-S11"}, {"version_affected": "<", "version_name": "17.4", "version_value": "17.4R2-S13, 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-S7"}, {"version_affected": "<", "version_name": "18.3", "version_value": "18.3R3-S4"}, {"version_affected": "<", "version_name": "18.4", "version_value": "18.4R1-S8, 18.4R2-S7, 18.4R3-S7"}, {"version_affected": "<", "version_name": "19.1", "version_value": "19.1R1-S6, 19.1R2-S2, 19.1R3-S4"}, {"version_affected": "<", "version_name": "19.2", "version_value": "19.2R1-S6, 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-S4, 19.4R2-S3, 19.4R3-S1"}, {"version_affected": "<", "version_name": "20.1", "version_value": "20.1R2"}, {"version_affected": "<", "version_name": "20.2", "version_value": "20.2R2"}, {"version_affected": "<", "version_name": "20.3", "version_value": "20.3R1-S1, 20.3R2"}]}}, {"product_name": "Junos OS Evolved", "version": {"version_data": [{"version_affected": "<", "version_name": "20.3", "version_value": "20.3R2-EVO"}]}}]}, "vendor_name": "Juniper Networks"}]}}, "configuration": [{"lang": "en", "value": "The following minimal configuration is necessary:\n\n* Must be running Junos OS or Junos OS Evolved.\n* A BGP peering session is established."}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this message will create a sustained Denial of Service (DoS) condition. This issue affects both IBGP and EBGP deployments over IPv4 or IPv6. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: 20.3 versions prior to 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": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/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-787 Out-of-bounds Write"}]}, {"description": [{"lang": "eng", "value": "Denial of Service (DoS)"}]}]}, "references": {"reference_data": [{"name": "https://kb.juniper.net/JSA11239", "refsource": "CONFIRM", "url": "https://kb.juniper.net/JSA11239"}]}, "solution": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \nJunos OS: 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 18.1R3-S12, 18.2R2-S8, 18.3R3-S4, 18.4R1-S8, 18.4R2-S7, 18.4R3-S7, 19.1R1-S6, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S1, 19.3R2-S5, 19.3R3-S1, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1, 20.1R2, 20.1R3, 20.2R2, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.3R2-EVO and all subsequent releases."}], "source": {"advisory": "JSA11239", "defect": ["1543234"], "discovery": "INTERNAL"}, "work_around": [{"lang": "en", "value": "There are no viable workarounds for this issue."}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T22:55:53.789Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://kb.juniper.net/JSA11239"}]}]}, "cveMetadata": {"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-31374", "datePublished": "2021-10-19T18:17:11.146Z", "dateReserved": "2021-04-15T00:00:00.000Z", "dateUpdated": "2024-09-16T22:20:53.760Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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"2FD9BB14-0375-4893-8CBE-42FF5DECE3E4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this message will create a sustained Denial of Service (DoS) condition. This issue affects both IBGP and EBGP deployments over IPv4 or IPv6. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: 20.3 versions prior to 20.3R2-EVO."}, {"lang": "es", "value": "En los dispositivos Junos OS y Junos OS Evolved de Juniper Networks, el procesamiento de un mensaje BGP UPDATE o KEEPALIVE especialmente dise\u00f1ado puede conllevar a un bloqueo y reinicio de un demonio de proceso de enrutamiento (RPD), causando una Denegaci\u00f3n de Servicio (DoS). Si se sigue recibiendo y procesando este mensaje, se crear\u00e1 una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS). Este problema afecta a las implementaciones de IBGP y EBGP sobre IPv4 o IPv6. Este problema afecta a: Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S11; versiones 17.4 anteriores a 17.4R2-S13, 17.4R3-S4; versiones 18.1 anteriores a 18.1R3-S12; versiones 18.2 anteriores a 18. 2R2-S8, 18.2R3-S7; versiones 18.3 anteriores a 18.3R3-S4; versiones 18.4 anteriores a 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; versiones 19.1 anteriores a 19.1R1-S6, 19. 1R2-S2, 19.1R3-S4; versiones 19.2 anteriores a 19.2R1-S6, 19.2R3-S1; versiones 19.3 anteriores a 19.3R2-S5, 19.3R3-S1; versiones 19.4 anteriores a 19. 4R1-S4, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; versiones 20.1 anteriores a 20.1R2; versiones 20.2 anteriores a 20.2R2; versiones 20.3 anteriores a 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: versiones 20.3 anteriores a 20.3R2-EVO"}], "id": "CVE-2021-31374", "lastModified": "2026-06-17T03:51:40.087", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2021-10-19T19:15:10.560", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11239"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11239"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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