CVE Vulnerabilities

CVE-2021-42146

Improper Handling of Exceptional Conditions

Published: Jan 24, 2024 | Modified: Feb 01, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers allow remote attackers to reuse the same epoch number within two times the TCP maximum segment lifetime, which is prohibited in RFC6347. This vulnerability allows remote attackers to obtain sensitive application (data of connected clients).

Weakness

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

Affected Software

Name Vendor Start Version End Version
Tinydtls Contiki-ng 2018-08-30 (including) 2018-08-30 (including)

References