CVE-2021-42142
CRITICALContiki-NG tinyDTLS < 2018-08-30 - Denial of Service via Large Epoch Number Mishandling
Title source: llmDescription
An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.
References (3)
Core 3
Core References
Issue Tracking, Patch
https://github.com/contiki-ng/tinydtls/issues/24
Mailing List, Third Party Advisory
https://seclists.org/fulldisclosure/2024/Jan/15
Mailing List
http://seclists.org/fulldisclosure/2024/Jan/15
Scores
CVSS v3
9.8
EPSS
0.0099
EPSS Percentile
57.8%
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
yes
Technical Impact
total
Details
CWE
CWE-755
CWE-770
Status
published
Products (1)
contiki-ng/tinydtls
< 2018-08-30
Published
Jan 23, 2024
Tracked Since
Feb 18, 2026