{"containers": {"cna": {"affected": [{"product": "contiki-ng", "vendor": "contiki-ng", "versions": [{"status": "affected", "version": "< 4.8"}]}], "descriptions": [{"lang": "en", "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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": "2022-08-04T20:25:16.000Z", "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-jqjf-v7v9-xp6w"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"}], "source": {"advisory": "GHSA-jqjf-v7v9-xp6w", "discovery": "UNKNOWN"}, "title": "Buffer overflow in contiki-ng", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32771", "STATE": "PUBLIC", "TITLE": "Buffer overflow in contiki-ng"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "contiki-ng", "version": {"version_data": [{"version_value": "< 4.8"}]}}]}, "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 IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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-jqjf-v7v9-xp6w", "refsource": "CONFIRM", "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w"}, {"name": "https://github.com/contiki-ng/contiki-ng/pull/1615", "refsource": "MISC", "url": "https://github.com/contiki-ng/contiki-ng/pull/1615"}, {"name": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f", "refsource": "MISC", "url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f"}, {"name": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8", "refsource": "MISC", "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"}]}, "source": {"advisory": "GHSA-jqjf-v7v9-xp6w", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:33:55.883Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-23T15:51:08.314192Z", "id": "CVE-2021-32771", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T17:53:33.843Z"}}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-32771", "datePublished": "2022-08-04T20:25:16.000Z", "dateReserved": "2021-05-12T00:00:00.000Z", "dateUpdated": "2025-04-23T17:53:33.843Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://github.com/contiki-ng/contiki-ng/pull/1615", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:33:55.883Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-32771", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-04-23T15:51:08.314192Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T15:51:10.139Z"}}], "cna": {"title": "Buffer overflow in contiki-ng", "source": {"advisory": "GHSA-jqjf-v7v9-xp6w", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "contiki-ng", "product": "contiki-ng", "versions": [{"status": "affected", "version": "< 4.8"}]}], "references": [{"url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/contiki-ng/contiki-ng/pull/1615", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2022-08-04T20:25:16.000Z"}, "x_legacyV4Record": {"impact": {"cvss": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, "source": {"advisory": "GHSA-jqjf-v7v9-xp6w", "discovery": "UNKNOWN"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "< 4.8"}]}, "product_name": "contiki-ng"}]}, "vendor_name": "contiki-ng"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w", "name": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w", "refsource": "CONFIRM"}, {"url": "https://github.com/contiki-ng/contiki-ng/pull/1615", "name": "https://github.com/contiki-ng/contiki-ng/pull/1615", "refsource": "MISC"}, {"url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f", "name": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f", "refsource": "MISC"}, {"url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8", "name": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-32771", "STATE": "PUBLIC", "TITLE": "Buffer overflow in contiki-ng", "ASSIGNER": "security-advisories@github.com"}}}}, "cveMetadata": {"cveId": "CVE-2021-32771", "state": "PUBLISHED", "dateUpdated": "2025-04-23T17:53:33.843Z", "dateReserved": "2021-05-12T00:00:00.000Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2022-08-04T20:25:16.000Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*", "matchCriteriaId": "8753C87C-46B4-467B-9598-30E562D5CB38", "versionEndExcluding": "4.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615."}, {"lang": "es", "value": "Contiki-NG es un sistema operativo de c\u00f3digo abierto y multiplataforma para dispositivos IoT. En las versiones afectadas es posible causar un desbordamiento de b\u00fafer cuando es copiado un prefijo de direcci\u00f3n IPv6 en la implementaci\u00f3n RPL-Classic en Contiki-NG. Para desencadenar la vulnerabilidad, el sistema Contiki-NG debe haberse unido a un DODAG RPL. Despu\u00e9s, un atacante puede enviar un paquete DAO con una opci\u00f3n Target que contenga una longitud de prefijo superior a 128 bits. El problema ha sido solucionado tras el lanzamiento de Contiki-NG versi\u00f3n 4.7. Los usuarios que no puedan actualizar pueden aplicar el parche en Contiki-NG PR #1615"}], "id": "CVE-2021-32771", "lastModified": "2024-11-21T06:07:42.533", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-08-04T21:15:07.907", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{}