[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.