{ "containers": { "cna": { "affected": [ { "product": "Sealevel\"", "vendor": "n/a", "versions": [ { "status": "affected", "version": "Sealevel Systems, Inc. SeaConnect 370W v1.3.34" } ] } ], "descriptions": [ { "lang": "en", "value": "An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [4] the json_object_get_string to populate the p_payload global variable. The p_payload is only 0x100 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json’s value and not the actual str size, this would result in a possible out-of-bounds write." } ], "metrics": [ { "cvssV3_0": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.0" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-120", "description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2022-02-04T22:29:00.000Z", "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "shortName": "talos" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "talos-cna@cisco.com", "ID": "CVE-2021-21969", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Sealevel\"", "version": { "version_data": [ { "version_value": "Sealevel Systems, Inc. SeaConnect 370W v1.3.34" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [4] the json_object_get_string to populate the p_payload global variable. The p_payload is only 0x100 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json’s value and not the actual str size, this would result in a possible out-of-bounds write." } ] }, "impact": { "cvss": { "baseScore": 3.7, "baseSeverity": "Low", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" } ] } ] }, "references": { "reference_data": [ { "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396", "refsource": "MISC", "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:30:23.803Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1396" } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-04-15T18:19:26.224383Z", "id": "CVE-2021-21969", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-15T19:11:38.376Z" } } ] }, "cveMetadata": { "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b", "assignerShortName": "talos", "cveId": "CVE-2021-21969", "datePublished": "2022-02-04T22:29:00.000Z", "dateReserved": "2021-01-04T00:00:00.000Z", "dateUpdated": "2025-04-15T19:11:38.376Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }