CVE-2020-12457
An issue was discovered in wolfSSL before 4.5.0. It mishandles the change_cipher_spec (CCS) message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply() loop, i.e., a denial of service.
Date published : 2020-08-21
https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable