{"id":"CVE-2021-21282","state":"PUBLISHED","title":"Buffer overflow in RPL source routing header processing","description":"Contiki-NG is an open-source, cross-platform operating system for internet of things devices. In versions prior to 4.5, buffer overflow can be triggered by an input packet when using either of Contiki-NG's two RPL implementations in source-routing mode. The problem has been patched in Contiki-NG 4.5. Users can apply the patch for this vulnerability out-of-band as a workaround.","publishedAt":"2021-06-18T20:00:11.000Z","updatedAt":"2024-08-03T18:09:14.981Z","severity":{"score":8.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["contiki-ng contiki-ng"],"affected":[{"vendor":"contiki-ng","product":"contiki-ng","versions":[{"version":"< 4.5","status":"affected"}]}],"references":["https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6xf2-77gf-fgjx","https://github.com/contiki-ng/contiki-ng/pull/1183"],"weaknesses":["CWE-120"],"ingestedAt":"2026-10-29T19:47:59.168Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/21xxx/CVE-2021-21282.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-21282","state":"PUBLISHED","datePublished":"2021-06-18T20:00:11.000Z","dateUpdated":"2024-08-03T18:09:14.981Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2020-12-22T00:00:00.000Z"},"containers":{"cna":{"title":"Buffer overflow in RPL source routing header processing","descriptions":[{"lang":"en","value":"Contiki-NG is an open-source, cross-platform operating system for internet of things devices. In versions prior to 4.5, buffer overflow can be triggered by an input packet when using either of Contiki-NG's two RPL implementations in source-routing mode. The problem has been patched in Contiki-NG 4.5. Users can apply the patch for this vulnerability out-of-band as a workaround."}],"affected":[{"vendor":"contiki-ng","product":"contiki-ng","versions":[{"version":"< 4.5","status":"affected"}]}],"references":[{"url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6xf2-77gf-fgjx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/contiki-ng/contiki-ng/pull/1183","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/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":{"shortName":"GitHub_M","dateUpdated":"2021-06-18T20:00:11.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSA-6xf2-77gf-fgjx","discovery":"UNKNOWN"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-21282","STATE":"PUBLIC","TITLE":"Buffer overflow in RPL source routing header processing"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"contiki-ng","version":{"version_data":[{"version_value":"< 4.5"}]}}]},"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. In versions prior to 4.5, buffer overflow can be triggered by an input packet when using either of Contiki-NG's two RPL implementations in source-routing mode. The problem has been patched in Contiki-NG 4.5. Users can apply the patch for this vulnerability out-of-band as a workaround."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/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-6xf2-77gf-fgjx","refsource":"CONFIRM","url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6xf2-77gf-fgjx"},{"name":"https://github.com/contiki-ng/contiki-ng/pull/1183","refsource":"MISC","url":"https://github.com/contiki-ng/contiki-ng/pull/1183"}]},"source":{"advisory":"GHSA-6xf2-77gf-fgjx","discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6xf2-77gf-fgjx","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/contiki-ng/contiki-ng/pull/1183","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T18:09:14.981Z"}}]}}}