{ "containers": { "cna": { "affected": [ { "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "17.3R3-S12", "status": "affected", "version": "17.3", "versionType": "custom" }, { "lessThan": "17.4R3-S5", "status": "affected", "version": "17.4", "versionType": "custom" }, { "lessThan": "18.1R3-S13", "status": "affected", "version": "18.1", "versionType": "custom" }, { "lessThan": "18.2R3-S8", "status": "affected", "version": "18.2", "versionType": "custom" }, { "lessThan": "18.3R3-S5", "status": "affected", "version": "18.3", "versionType": "custom" }, { "lessThan": "18.4R1-S8, 18.4R3-S7", "status": "affected", "version": "18.4", "versionType": "custom" }, { "lessThan": "19.1R3-S5", "status": "affected", "version": "19.1", "versionType": "custom" }, { "lessThan": "19.2R3-S2", "status": "affected", "version": "19.2", "versionType": "custom" }, { "lessThan": "19.3R3-S2", "status": "affected", "version": "19.3", "versionType": "custom" }, { "lessThan": "19.4R3-S2", "status": "affected", "version": "19.4", "versionType": "custom" }, { "lessThan": "20.1R3", "status": "affected", "version": "20.1", "versionType": "custom" }, { "lessThan": "20.2R2-S3, 20.2R3", "status": "affected", "version": "20.2", "versionType": "custom" }, { "lessThan": "20.3R2", "status": "affected", "version": "20.3", "versionType": "custom" }, { "lessThan": "20.4R2", "status": "affected", "version": "20.4", "versionType": "custom" } ] } ], "configurations": [ { "lang": "en", "value": "The example of DHCPv6 local server configuration stanza affected by this issue is:\n [system services dhcp-local-server dhcpv6]\n\nThe example of configuration stanza for DHCPv6 Relay Agent affected by this issue is: \n [forwarding-options dhcp-relay dhcpv6]" } ], "datePublic": "2021-04-14T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2." } ], "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-703", "description": "CWE-703 Improper Check or Handling of Exceptional Conditions", "lang": "en", "type": "CWE" } ] }, { "descriptions": [ { "description": "Denial of Service (DoS)", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-04-22T19:37:05.000Z", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://kb.juniper.net/JSA11168" } ], "solutions": [ { "lang": "en", "value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S12, 17.4R3-S5, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R1-S8, 18.4R3-S7, 19.1R3-S5, 19.2R3-S2, 19.3R3-S2, 19.4R3-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases." } ], "source": { "advisory": "JSA11168", "defect": [ "1564434" ], "discovery": "USER" }, "title": "Junos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash and restart.", "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-2021-0240", "STATE": "PUBLIC", "TITLE": "Junos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash and restart." }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Junos OS", "version": { "version_data": [ { "version_affected": "<", "version_name": "17.3", "version_value": "17.3R3-S12" }, { "version_affected": "<", "version_name": "17.4", "version_value": "17.4R3-S5" }, { "version_affected": "<", "version_name": "18.1", "version_value": "18.1R3-S13" }, { "version_affected": "<", "version_name": "18.2", "version_value": "18.2R3-S8" }, { "version_affected": "<", "version_name": "18.3", "version_value": "18.3R3-S5" }, { "version_affected": "<", "version_name": "18.4", "version_value": "18.4R1-S8, 18.4R3-S7" }, { "version_affected": "<", "version_name": "19.1", "version_value": "19.1R3-S5" }, { "version_affected": "<", "version_name": "19.2", "version_value": "19.2R3-S2" }, { "version_affected": "<", "version_name": "19.3", "version_value": "19.3R3-S2" }, { "version_affected": "<", "version_name": "19.4", "version_value": "19.4R3-S2" }, { "version_affected": "<", "version_name": "20.1", "version_value": "20.1R3" }, { "version_affected": "<", "version_name": "20.2", "version_value": "20.2R2-S3, 20.2R3" }, { "version_affected": "<", "version_name": "20.3", "version_value": "20.3R2" }, { "version_affected": "<", "version_name": "20.4", "version_value": "20.4R2" } ] } } ] }, "vendor_name": "Juniper Networks" } ] } }, "configuration": [ { "lang": "en", "value": "The example of DHCPv6 local server configuration stanza affected by this issue is:\n [system services dhcp-local-server dhcpv6]\n\nThe example of configuration stanza for DHCPv6 Relay Agent affected by this issue is: \n [forwarding-options dhcp-relay dhcpv6]" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2." } ] }, "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-703 Improper Check or Handling of Exceptional Conditions" } ] }, { "description": [ { "lang": "eng", "value": "Denial of Service (DoS)" } ] } ] }, "references": { "reference_data": [ { "name": "https://kb.juniper.net/JSA11168", "refsource": "MISC", "url": "https://kb.juniper.net/JSA11168" } ] }, "solution": [ { "lang": "en", "value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S12, 17.4R3-S5, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R1-S8, 18.4R3-S7, 19.1R3-S5, 19.2R3-S2, 19.3R3-S2, 19.4R3-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases." } ], "source": { "advisory": "JSA11168", "defect": [ "1564434" ], "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": "2024-08-03T15:32:10.102Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://kb.juniper.net/JSA11168" } ] } ] }, "cveMetadata": { "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-0240", "datePublished": "2021-04-22T19:37:06.056Z", "dateReserved": "2020-10-27T00:00:00.000Z", "dateUpdated": "2024-09-16T20:26:48.246Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }