{"containers": {"cna": {"affected": [{"product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "19.4R3-S1", "status": "affected", "version": "19.4", "versionType": "custom"}, {"lessThan": "20.1R2-S1, 20.1R3", "status": "affected", "version": "20.1", "versionType": "custom"}, {"lessThan": "20.2R3", "status": "affected", "version": "20.2", "versionType": "custom"}, {"lessThan": "20.3R2", "status": "affected", "version": "20.3", "versionType": "custom"}]}], "configurations": [{"lang": "en", "value": "This issue requires active-lease query with none or greater optional settings to be configured in one or more hierarchy locations.\n\n active-leasequery {\n idle-timeout \"seconds\"; (optional)\n peer-address \"address\"; (optional)\n timeout \"seconds\"; (optional)\n topology-discover; (optional)\n }\n\nwith\n\n [forwarding-options dhcp-relay],\n [forwarding-options dhcp-relay dhcpv6],\n [logical-systems logical-system-name ...],\n [logical-systems logical-system-name routing-instances routing-instance-name ...],\n [routing-instances routing-instance-name ...]"}], "datePublic": "2021-04-14T00:00:00", "descriptions": [{"lang": "en", "value": "An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved."}], "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": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/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": "2021-04-22T19:37:24", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://kb.juniper.net/JSA11158"}, {"tags": ["x_refsource_MISC"], "url": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html"}], "solutions": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \nJunos OS: 19.4R3-S1, 20.1R2-S1, 20.1R3, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases."}], "source": {"advisory": "JSA11158", "defect": ["1534814"], "discovery": "USER"}, "title": "Junos OS: Receipt of a crafted DHCP packet will cause the jdhcpd DHCP service to core.", "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": "2021-04-14T16:00:00.000Z", "ID": "CVE-2021-0267", "STATE": "PUBLIC", "TITLE": "Junos OS: Receipt of a crafted DHCP packet will cause the jdhcpd DHCP service to core."}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Junos OS", "version": {"version_data": [{"version_affected": "<", "version_name": "19.4", "version_value": "19.4R3-S1"}, {"version_affected": "<", "version_name": "20.1", "version_value": "20.1R2-S1, 20.1R3"}, {"version_affected": "<", "version_name": "20.2", "version_value": "20.2R3"}, {"version_affected": "<", "version_name": "20.3", "version_value": "20.3R2"}]}}]}, "vendor_name": "Juniper Networks"}]}}, "configuration": [{"lang": "en", "value": "This issue requires active-lease query with none or greater optional settings to be configured in one or more hierarchy locations.\n\n active-leasequery {\n idle-timeout \"seconds\"; (optional)\n peer-address \"address\"; (optional)\n timeout \"seconds\"; (optional)\n topology-discover; (optional)\n }\n\nwith\n\n [forwarding-options dhcp-relay],\n [forwarding-options dhcp-relay dhcpv6],\n [logical-systems logical-system-name ...],\n [logical-systems logical-system-name routing-instances routing-instance-name ...],\n [routing-instances routing-instance-name ...]"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved."}]}, "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": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/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/JSA11158", "refsource": "MISC", "url": "https://kb.juniper.net/JSA11158"}, {"name": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html", "refsource": "MISC", "url": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html"}]}, "solution": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: \nJunos OS: 19.4R3-S1, 20.1R2-S1, 20.1R3, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases."}], "source": {"advisory": "JSA11158", "defect": ["1534814"], "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": "2024-08-03T15:32:10.508Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://kb.juniper.net/JSA11158"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html"}]}]}, "cveMetadata": {"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-0267", "datePublished": "2021-04-22T19:37:24.295896Z", "dateReserved": "2020-10-27T00:00:00", "dateUpdated": "2024-09-17T03:54:44.443Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*", "matchCriteriaId": "DC743EE4-8833-452A-94DB-655BF139F883", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*", "matchCriteriaId": "FE96A8EA-FFE3-4D8F-9266-21899149D634", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*", "matchCriteriaId": "C12A75C6-2D00-4202-B861-00FF71585FA0", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*", "matchCriteriaId": "4DCFA774-96EF-4018-82CF-95C807025C24", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*", "matchCriteriaId": "76022948-4B07-43CB-824C-44E1AB3537CB", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*", "matchCriteriaId": "25446F60-5CB9-4923-BCE8-609AE3CFDFBC", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:*", "matchCriteriaId": "758275F3-9457-45A2-8F57-65DCD659FC1B", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*", "matchCriteriaId": "8328FDE6-9707-4142-B905-3B07C0E28E35", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*", "matchCriteriaId": "41CD982F-E6F2-4951-9F96-A76C142DF08E", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*", "matchCriteriaId": "19FDC05F-5582-4F7E-B628-E58A3C0E7F2F", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*", "matchCriteriaId": "401306D1-E9CE-49C6-8DC9-0E8747B9DC2C", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:*", "matchCriteriaId": "615EAF48-AD53-4CC2-B233-5EA5C0F72CB1", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:*", "matchCriteriaId": "DC8E7547-6649-436D-BC45-184417680C72", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*", "matchCriteriaId": "CD07B7E2-F5C2-4610-9133-FDA9E66DFF4F", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*", "matchCriteriaId": "D3C23AEB-34DE-44FB-8D64-E69D6E8B7401", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*", "matchCriteriaId": "18DB9401-5A51-4BB3-AC2F-58F58F1C788C", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*", "matchCriteriaId": "06F53DA5-59AE-403C-9B1E-41CE267D8BB1", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:*", "matchCriteriaId": "3332262F-81DA-4D78-99C9-514CADA46611", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*", "matchCriteriaId": "B46B63A2-1518-4A29-940C-F05624C9658D", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:*", "matchCriteriaId": "8E0D4959-3865-42A7-98CD-1103EBD84528", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.2:r2-s3:*:*:*:*:*:*", "matchCriteriaId": "3A58292B-814C-49E7-8D6D-BE26EFB9ADDF", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*", "matchCriteriaId": "5C9BC697-C7C9-447D-9EBD-E9711462583E", "vulnerable": true}, {"criteria": "cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:*", "matchCriteriaId": "7B80433B-57B1-49EF-B1A1-83781D6102E3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved."}, {"lang": "es", "value": "Una vulnerabilidad de Comprobaci\u00f3n de Entrada Inapropiada en una porci\u00f3n de consulta active-lease en DHCP Relay Agent de JDHCPD de Juniper Networks Junos OS, permite a un atacante causar una Denegaci\u00f3n de Servicio (DoS) mediante el env\u00edo de un paquete DHCP dise\u00f1ado hacia el dispositivo, lo que bloquea el servicio DHCP jdhcpd.&#xa0;Por lo general, se configura para Broadband Subscriber Sessions.&#xa0;La recepci\u00f3n y el procesamiento continuo de este paquete dise\u00f1ado crear\u00e1 una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS).&#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 19.4 anteriores a 19.4R3-S1;&#xa0;versiones 20.1 anteriores a 20.1R2-S1, 20.1R3;&#xa0;20.2 versiones anteriores a 20.2R3;&#xa0;20.3 versiones anteriores a 20.3R2.&#xa0;Este problema no afecta a Junos OS Evolved"}], "id": "CVE-2021-0267", "lastModified": "2024-11-21T05:42:21.583", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 3.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "sirt@juniper.net", "type": "Secondary"}, {"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-22T20:15:09.910", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11158"}, {"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11158"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}