CVE-2021-0267
Vulnerability from cvelistv5
Published
2021-04-22 19:37
Modified
2024-09-17 03:54
Severity ?
EPSS score ?
Summary
Junos OS: Receipt of a crafted DHCP packet will cause the jdhcpd DHCP service to core.
References
Impacted products
▼ | Vendor | Product |
---|---|---|
Juniper Networks | Junos OS |
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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": "\u003c", "version_name": "19.4", "version_value": "19.4R3-S1" }, { "version_affected": "\u003c", "version_name": "20.1", "version_value": "20.1R2-S1, 20.1R3" }, { "version_affected": "\u003c", "version_name": "20.2", "version_value": "20.2R3" }, { "version_affected": "\u003c", "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\u0027s 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." } ] } } }, "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", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-0267\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2021-04-22T20:15:09.910\",\"lastModified\":\"2021-07-23T19:10:56.360\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD\u0027s 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.\u0026#xa0;Por lo general, se configura para Broadband Subscriber Sessions.\u0026#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).\u0026#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 19.4 anteriores a 19.4R3-S1;\u0026#xa0;versiones 20.1 anteriores a 20.1R2-S1, 20.1R3;\u0026#xa0;20.2 versiones anteriores a 20.2R3;\u0026#xa0;20.3 versiones anteriores a 20.3R2.\u0026#xa0;Este problema no afecta a Junos OS 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Advisory\"]},{\"url\":\"https://www.juniper.net/documentation/us/en/software/junos/subscriber-mgmt-sessions/topics/ref/statement/active-leasequery-edit-forwarding-options.html\",\"source\":\"sirt@juniper.net\",\"tags\":[\"Vendor Advisory\"]}]}}" } }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.