tls 1.3 psk binder

About this tag
The tag covers discussions about the TLS 1.3 pre-shared key (PSK) binder, particularly a timing side-channel vulnerability (CVE-2025-11932) in wolfSSL. The issue involved a non-constant-time comparison during PSK binder verification that could theoretically leak information. It was fixed in wolfSSL 5.8.4 via PR #9223. The tag is relevant for security researchers, developers, and IT professionals monitoring TLS 1.3 implementation flaws, cryptographic timing attacks, and patch management for wolfSSL or similar libraries.

  1. CVE-2025-11932: WolfSSL TLS 1.3 PSK Binder Timing Fix in 5.8.4

    The TLS 1.3 pre-shared key (PSK) binder verification in wolfSSL contained a timing side‑channel: a non‑constant‑time comparison allowed tiny timing differences during binder verification that could, in theory, leak information about a PSK binder. The issue was assigned CVE‑2025‑11932, publicly...
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