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CVE-2022-42905

Status Candidate

Overview

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.)

Related Files

wolfSSL WOLFSSL_CALLBACKS Heap Buffer Over-Read
Posted Jan 20, 2023
Authored by Maximilian Ammann

wolfSSL versions prior to 5.5.2 suffer from a heap buffer over-read with WOLFSSL_CALLBACKS and can be triggered with a single Client Hello message.

tags | exploit
advisories | CVE-2022-42905
SHA-256 | 22c8bd75668677a45f903b9289dfd4de5cffd44e8f21af11820559278a985e59
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