CVE-2021-42143

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. An infinite loop bug exists during the handling of a ClientHello handshake message. This bug allows remote attackers to cause a denial of service by sending a malformed ClientHello handshake message with an odd length of cipher suites, which triggers an infinite loop (consuming all resources) and a buffer over-read that can disclose sensitive information.
References
Link Resource
https://seclists.org/fulldisclosure/2024/Jan/16 Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*

History

31 Jan 2024, 20:05

Type Values Removed Values Added
CWE CWE-835
References () https://seclists.org/fulldisclosure/2024/Jan/16 - () https://seclists.org/fulldisclosure/2024/Jan/16 - Mailing List, Third Party Advisory
CPE cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*
First Time Contiki-ng
Contiki-ng tinydtls
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 9.1

24 Jan 2024, 18:45

Type Values Removed Values Added
New CVE

Information

Published : 2024-01-24 18:15

Updated : 2024-02-28 20:54


NVD link : CVE-2021-42143

Mitre link : CVE-2021-42143

CVE.ORG link : CVE-2021-42143


JSON object : View

Products Affected

contiki-ng

  • tinydtls
CWE
CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')