CVE-2022-38153 Information

Description

An issue was discovered in wolfSSL before 5.5.0 (when –enable-session-ticket is used); however only version 5.3.0 is exploitable. Man-in-the-middle attackers or a malicious server can crash TLS 1.2 clients during a handshake. If an attacker injects a large ticket (more than 256 bytes) into a NewSessionTicket message in a TLS 1.2 handshake and the client has a non-empty session cache the session cache frees a pointer that points to unallocated memory causing the client to crash with a ree(): invalid pointer\ message. NOTE: It is likely that this is also exploitable during TLS 1.3 handshakes between a client and a malicious server. With TLS 1.3 it is not possible to exploit this as a man-in-the-middle.

Reference

https://github.com/trailofbits/tlspuffin https://www.wolfssl.com/docs/security-vulnerabilities/ https://github.com/wolfSSL/wolfssl/releases https://github.com/wolfSSL/wolfssl/pull/5476