Note:
This project will be discontinued after December 13, 2021. [more]
2020-08-21
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.
Products | Wolfssl |
Type | Improper Input Validation (CWE-20) |
First patch | - None (likely due to unavailable code) |
Patches | https://github.com/wolfSSL/wolfssl/pull/2927 |
Links | https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable |