Published: 07/11/2022 Updated: 15/02/2023

CVSS v3 Base Score: 9.1 | Impact Score: 5.2 | Exploitability Score: 3.9

VMScore: 0

In wolfSSL prior to 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.)

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wolfssl wolfssl

wolfSSL versions prior to 552 suffer from a heap buffer over-read with WOLFSSL_CALLBACKS and can be triggered with a single Client Hello message ...

wolfSSL Embedded SSL/TLS Library The wolfSSL embedded SSL library (formerly CyaSSL) is a lightweight SSL/TLS library written in ANSI C and targeted for embedded, RTOS, and resource-constrained environments - primarily because of its small size, speed, and feature set It is commonly used in standard operating environments as well because of its royalty-free pricing and excelle

CWE-125 https://www.wolfssl.com/docs/security-vulnerabilities/https://github.com/wolfSSL/wolfssl/releases https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stable http://seclists.org/fulldisclosure/2023/Jan/11 http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.html https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/https://nvd.nist.gov https://github.com/X-Margin-Inc/wolfssl https://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.html

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