cve/2020/CVE-2020-12457.md
2024-05-25 21:48:12 +02:00

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CVE-2020-12457

Description

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.

POC

Reference

No PoCs from references.

Github