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CVE-2021-42143
Published: Jan 24, 2024
Modified: Jun 20, 2025
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
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