CVEvulnerability
CVE-2021-42141
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2024-01-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-755
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 configurations
• contiki-ng tinydtls (<= 2018-08-30)
Related
Weakness · CWE (1)
- CWE-755 Improper Handling of Exceptional Conditions weakness
References
- http://packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html Third Party Advisory, VDB Entry
- https://github.com/contiki-ng/tinydtls/issues/27 Patch
- https://seclists.org/fulldisclosure/2024/Jan/14 Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2024/Jan/14 seclists.org
- https://github.com/contiki-ng/tinydtls/issues/27 Patch
- https://seclists.org/fulldisclosure/2024/Jan/14 Mailing List, Third Party Advisory