CVE-2021-42145

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://seclists.org/fulldisclosure/2024/Jan/18", "name": "http://seclists.org/fulldisclosure/2024/Jan/18", "tags": [], "refsource": ""}, {"url": "https://seclists.org/fulldisclosure/2024/Jan/18", "name": "https://seclists.org/fulldisclosure/2024/Jan/18", "tags": ["Mailing List", "Third Party Advisory"], "refsource": ""}, {"url": "https://seclists.org/fulldisclosure/2024/Jan/18", "name": "https://seclists.org/fulldisclosure/2024/Jan/18", "tags": ["Mailing List", "Third Party Advisory"], "refsource": ""}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An assertion failure discovered in in check_certificate_request() in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers to cause a denial of service."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-755"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-42145", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2024-01-24T19:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2018-08-30"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2025-06-20T20:15Z"}