cve/2022/CVE-2022-42905.md

CVE-2022-42905

Description

In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on the heap of 5 bytes. (WOLFSSL_CALLBACKS is only intended for debugging.)

POC

Reference

• http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.html
• http://seclists.org/fulldisclosure/2023/Jan/11
• https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/trailofbits/publications