CVE-2019-14317

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate biased DSA nonces. This allows a remote attacker 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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-331

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Dec 11, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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