{ "id": "CVE-2021-33317", "sourceIdentifier": "cve@mitre.org", "published": "2022-05-11T18:15:22.783", "lastModified": "2022-05-20T15:38:02.560", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from a null pointer dereference vulnerability. This vulnerability exists in its lldp related component. Due to fail to check if ChassisID TLV is contained in the packet, by sending a crafted lldp packet to the device, an attacker can crash the process due to null pointer dereference." }, { "lang": "es", "value": "El switch TRENDnet TI-PG1284i (hw versi\u00f3n v2.0R) versiones anteriores a 2.0.2.S0, sufre una vulnerabilidad de desreferencia de puntero null. Esta vulnerabilidad se presenta en su componente relacionado con lldp. Debido a que no es comprobado si el TLV ChassisID est\u00e1 contenido en el paquete, mediante el env\u00edo de un paquete lldp dise\u00f1ado al dispositivo, un atacante puede bloquear el proceso debido a la desreferencia de puntero nulo" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-476" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:trendnet:ti-pg1284i_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.0.2.s0", "matchCriteriaId": "E00528D5-3C8F-4AD9-AA39-DB45DD5F11EE" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:trendnet:ti-pg1284i:2.0r:*:*:*:*:*:*:*", "matchCriteriaId": "8CA516E3-DBB2-47F9-BBAB-101D89111085" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": 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