{ "containers": { "cna": { "affected": [ { "product": "contiki-ng", "vendor": "contiki-ng", "versions": [ { "status": "affected", "version": "< 4.6" } ] } ], "descriptions": [ { "lang": "en", "value": "Contiki-NG is an open-source, cross-platform operating system for internet of things devices. A buffer overflow vulnerability exists in Contiki-NG versions prior to 4.6. After establishing a TCP socket using the tcp-socket library, it is possible for the remote end to send a packet with a data offset that is unvalidated. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-120", "description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-06-18T20:25:10.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/contiki-ng/contiki-ng/pull/1366" } ], "source": { "advisory": "GHSA-mc42-fqfr-h9fp", "discovery": "UNKNOWN" }, "title": "Buffer overflow due to unvalidated TCP data offset", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-21281", "STATE": "PUBLIC", "TITLE": "Buffer overflow due to unvalidated TCP data offset" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "contiki-ng", "version": { "version_data": [ { "version_value": "< 4.6" } ] } } ] }, "vendor_name": "contiki-ng" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Contiki-NG is an open-source, cross-platform operating system for internet of things devices. A buffer overflow vulnerability exists in Contiki-NG versions prior to 4.6. After establishing a TCP socket using the tcp-socket library, it is possible for the remote end to send a packet with a data offset that is unvalidated. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround." } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp", "refsource": "CONFIRM", "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp" }, { "name": "https://github.com/contiki-ng/contiki-ng/pull/1366", "refsource": "MISC", "url": "https://github.com/contiki-ng/contiki-ng/pull/1366" } ] }, "source": { "advisory": "GHSA-mc42-fqfr-h9fp", "discovery": "UNKNOWN" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:09:15.191Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/contiki-ng/contiki-ng/pull/1366" } ] } ] }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-21281", "datePublished": "2021-06-18T20:25:10.000Z", "dateReserved": "2020-12-22T00:00:00.000Z", "dateUpdated": "2024-08-03T18:09:15.191Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }