{"api_version":"1","generated_at":"2026-05-13T08:50:17+00:00","cve":"CVE-2023-28116","urls":{"html":"https://cve.report/CVE-2023-28116","api":"https://cve.report/api/cve/CVE-2023-28116.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-28116","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-28116"},"summary":{"title":"CVE-2023-28116","description":"Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer (packetbuf) for processing of packets, with the size of PACKETBUF_SIZE. In particular, when using the BLE L2CAP module with the default configuration, the PACKETBUF_SIZE value becomes larger then the actual size of the packetbuf. When large packets are processed by the L2CAP module, a buffer overflow can therefore occur when copying the packet data to the packetbuf. The vulnerability has been patched in the \"develop\" branch of Contiki-NG, and will be included in release 4.9. The problem can be worked around by applying the patch manually.","state":"PUBLIC","assigner":"security-advisories@github.com","published_at":"2023-03-17 22:15:00","updated_at":"2023-11-07 04:10:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://github.com/contiki-ng/contiki-ng/pull/2398","name":"https://github.com/contiki-ng/contiki-ng/pull/2398","refsource":"MISC","tags":[],"title":"Prevent buffer overflows due to misconfigured BLE MTU. by nvt · Pull Request #2398 · contiki-ng/contiki-ng · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp","name":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp","refsource":"MISC","tags":[],"title":"Buffer overflow in L2CAP due to misconfigured MTU · Advisory · contiki-ng/contiki-ng · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-28116","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28116","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"28116","vulnerable":"1","versionEndIncluding":"4.8","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"contiki-ng","cpe5":"contiki-ng","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2023-28116","ASSIGNER":"security-advisories@github.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. 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The problem can be worked around by applying the patch manually."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","cweId":"CWE-120"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"contiki-ng","product":{"product_data":[{"product_name":"contiki-ng","version":{"version_data":[{"version_affected":"=","version_value":"<= 4.8"}]}}]}}]}},"references":{"reference_data":[{"url":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp","refsource":"MISC","name":"https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp"},{"url":"https://github.com/contiki-ng/contiki-ng/pull/2398","refsource":"MISC","name":"https://github.com/contiki-ng/contiki-ng/pull/2398"}]},"source":{"advisory":"GHSA-m737-4vx6-pfqp","discovery":"UNKNOWN"},"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"}]}},"nvd":{"publishedDate":"2023-03-17 22:15:00","lastModifiedDate":"2023-11-07 04:10:00","problem_types":["CWE-787"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.9}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*","versionEndIncluding":"4.8","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}