CVE-2021-42141

Published: Jan 22, 2024Modified: Jun 20, 2025

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service.

Affected (1)

Products: Contiki Ng: Tinydtls

Contiki Ng

1 product

Tinydtls

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Contiki Ng Tinydtls	Up to 2018-08-30

Related CWEs

CWE-755

Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

References (7)

http://packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

https://github.com/contiki-ng/tinydtls/issues/27

Source: cve@mitre.org

Patch

https://seclists.org/fulldisclosure/2024/Jan/14

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

http://seclists.org/fulldisclosure/2024/Jan/14

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/contiki-ng/tinydtls/issues/27

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://seclists.org/fulldisclosure/2024/Jan/14

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.