CVE-2021-42147

CRITICAL

Contiki-ng Tinydtls - Out-of-Bounds Read

Title source: rule
STIX 2.1

Description

Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.

References (2)

Core 2
Core References
Mailing List, Third Party Advisory
https://seclists.org/fulldisclosure/2024/Jan/20

Scores

CVSS v3 9.1
EPSS 0.0035
EPSS Percentile 57.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (1)
contiki-ng/tinydtls 2018-08-30
Published Jan 24, 2024
Tracked Since Feb 18, 2026