CVE-2019-18948

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "An issue was found in Arista EOS. Specific malformed ARP packets can impact the software forwarding of VxLAN packets. This issue is found in Arista\u2019s EOS VxLAN code, which can allow attackers to crash the VxlanSwFwd agent. This affects EOS 4.21.8M and below releases in the 4.21.x train, 4.22.3M and below releases in the 4.22.x train, 4.23.1F and below releases in the 4.23.x train, and all releases in 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 code train."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-04-16T16:52:56.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-18948", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue was found in Arista EOS. Specific malformed ARP packets can impact the software forwarding of VxLAN packets. This issue is found in Arista\u2019s EOS VxLAN code, which can allow attackers to crash the VxlanSwFwd agent. This affects EOS 4.21.8M and below releases in the 4.21.x train, 4.22.3M and below releases in the 4.22.x train, 4.23.1F and below releases in the 4.23.x train, and all releases in 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 code train."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47", "refsource": "CONFIRM", "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T02:02:39.867Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2019-18948", "datePublished": "2020-04-16T16:52:56.000Z", "dateReserved": "2019-11-13T00:00:00.000Z", "dateUpdated": "2024-08-05T02:02:39.867Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "0F8BCF4B-F2AE-4E98-AF4C-3A0663D474CD", "versionEndIncluding": "4.21.8m", "versionStartIncluding": "4.21.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "5B4B4E99-29DF-46A3-B504-43F09F4D000B", "versionEndIncluding": "4.22.3m", "versionStartIncluding": "4.22.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "A82FB6CA-092F-49C1-863D-AA07E6C3F245", "versionEndIncluding": "4.23.1f", "versionStartIncluding": "4.23.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:4.15:*:*:*:*:*:*:*", "matchCriteriaId": "8705CF80-DEFC-4425-8E23-D98FFD678157", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:4.16:*:*:*:*:*:*:*", "matchCriteriaId": "045E5867-6089-4735-BD48-BBFC12EF27E5", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:4.17:*:*:*:*:*:*:*", "matchCriteriaId": "D173671D-2339-4998-BA30-E0B0B7B6A967", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:4.18:*:*:*:*:*:*:*", "matchCriteriaId": "B4751406-01B9-4992-9650-4400A9A39DCD", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:4.19:*:*:*:*:*:*:*", "matchCriteriaId": "42513A2E-1717-4EE7-8AC3-27595F0B2914", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:4.20:*:*:*:*:*:*:*", "matchCriteriaId": "71DFC595-50EA-4879-930E-FC68B9BE996B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was found in Arista EOS. Specific malformed ARP packets can impact the software forwarding of VxLAN packets. This issue is found in Arista\u2019s EOS VxLAN code, which can allow attackers to crash the VxlanSwFwd agent. This affects EOS 4.21.8M and below releases in the 4.21.x train, 4.22.3M and below releases in the 4.22.x train, 4.23.1F and below releases in the 4.23.x train, and all releases in 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 code train."}, {"lang": "es", "value": "Se encontr\u00f3 un problema en Arista EOS. Los paquetes ARP malformados espec\u00edficos pueden afectar el reenv\u00edo de software de los paquetes VxLAN. Este problema se encuentra en el c\u00f3digo EOS VxLAN de Arista, que puede permitir a los atacantes bloquear el agente VxlanSwFwd. Esto afecta a EOS 4.21.8M y versiones anteriores en el tren 4.21.x, 4.22.3M y versiones anteriores en el tren 4.22.x, 4.23.1F y versiones anteriores en el tren 4.23.x, y todas las versiones en 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 tren de c\u00f3digo"}], "id": "CVE-2019-18948", "lastModified": "2026-06-17T02:25:37.723", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-16T19:15:22.383", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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