CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.1. It may be remotely exploitable. It may lead to a denial-of-service condition.
CVE
CVE-2021-42143
Severity
CRITICAL
CVSS
9.1
EPSS
0.81%
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)