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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-12-11T17:30:30

Updated: 2024-08-05T00:12:43.367Z

Reserved: 2019-07-27T00:00:00

Link: CVE-2019-14317

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2019-12-11T18:16:18.880

Modified: 2021-07-21T11:39:23.747

Link: CVE-2019-14317

cve-icon Redhat

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