CVE-2021-44718

Name of the Vulnerable Software and Affected Versions wolfSSL versions through 5.0.0

Description The issue allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.

Recommendations For wolfSSL versions through 5.0.0, update to a version later than 5.0.0 to resolve the issue. As a temporary workaround, consider restricting the acceptance of TLS messages in the client module to prevent infinite loops.