Contiki-NG tinyDTLS dtls_ccm_decrypt_message() Buffer Overread

[Suggested description]An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. Incorrect handling of over-large packets in dtls_ccm_decrypt_message() causes a buffer over-read that can expose sensitive information.[Vulnerability Type]Buffer Overflow[Vendor of Product]https://github.com/contiki-ng/tinydtls[Affected Product Code Base]contiki-ng tinydtls - master branch 53a0d97[Affected Component]the service of dtls servers[Attack Type]Remote[Impact Code execution]true[Impact Denial of Service]true[Reference]https://github.com/contiki-ng/tinydtls/issues/23[Discoverer]jerrytesting[CVE Reference]The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2021-42144 to this vulnerability.