CVE-2019-14317

2019-12-1117:30:30

mitre

www.cve.org

AI Score

5.2

Confidence

High

EPSS

0.002

Percentile

51.8%

JSON

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.

References

www.wolfssl.com/docs/security-vulnerabilities/