CVE-2021-42141
CRITICALContiki-NG tinyDTLS < 2018-08-30 - Denial of Service via Handshake Epoch Mismatch
Title source: llmDescription
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.
References (4)
Core 4
Core References
Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/176625/Contiki-NG-tinyDTLS-Denial-Of-Service.html
Mailing List, Third Party Advisory
https://seclists.org/fulldisclosure/2024/Jan/14
Mailing List
http://seclists.org/fulldisclosure/2024/Jan/14
Scores
CVSS v3
9.8
EPSS
0.0118
EPSS Percentile
63.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-755
Status
published
Products (1)
contiki-ng/tinydtls
< 2018-08-30
Published
Jan 22, 2024
Tracked Since
Feb 18, 2026