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[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.
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Current thread:

• Buffer over-read in TinyDTLS Meng Ruijie (Jan 17)