Vulnerabilities > CVE-2021-42143 - Infinite Loop vulnerability in Contiki-Ng Tinydtls 20180830
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 2 |