wolfSSL and wolfCrypt 4.1.0 and previous versions (formerly known as CyaSSL) generate biased DSA nonces. This allows a remote malicious user to compute the long term private key from several hundred DSA signatures via a lattice attack. The issue occurs because dsa.c fixes two bits of the generated nonces.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
wolfssl wolfssl |
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