CVE-2020-15897

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2020-10-07T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-10-26T15:13:40.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-15897", "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": "Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54", "refsource": "CONFIRM", "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:30:23.306Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-15897", "datePublished": "2020-10-26T15:13:40.000Z", "dateReserved": "2020-07-22T00:00:00.000Z", "dateUpdated": "2024-08-04T13:30:23.306Z", "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": "87F6E3B9-1EC0-4B57-ACB3-1B9110C65A08", "versionEndExcluding": "4.21.12m", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "9CA840AC-49E4-491A-872E-1EE60B986131", "versionEndExcluding": "4.22.7m", "versionStartIncluding": "4.22", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "C349690C-2136-4E50-96E9-432FD27E4995", "versionEndExcluding": "4.23.5m", "versionStartIncluding": "4.23", "vulnerable": true}, {"criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*", "matchCriteriaId": "FFDB16F2-4FA8-4EBE-A61D-06E94C045FF6", "versionEndExcluding": "4.24.2f", "versionStartIncluding": "4.24", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router."}, {"lang": "es", "value": "Arista EOS versiones anteriores a 4.21.12M, versiones 4.22.x anteriores a 4.22.7M, versiones 4.23.x anteriores a 4.23.5M y versiones 4.24.x anteriores a 4.24.2F, permite a atacantes remotos causar p\u00e9rdida de tr\u00e1fico o reenv\u00edo incorrecto de tr\u00e1fico por medio de una PDU de estado de enlace malformado hacia el enrutador IS-IS"}], "id": "CVE-2020-15897", "lastModified": "2026-06-17T02:57:22.090", "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": "2020-10-26T16:15:13.207", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11760-security-advisory-54"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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