CVE-2019-19963

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

An issue was discovered in wolfSSL before 4.3.0 in a non-default configuration where DSA is enabled. DSA signing uses the BEEA algorithm during modular inversion of the nonce, leading to a side-channel attack against the nonce.

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

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/wolfSSL/wolfssl/commit/7e391f0fd57f2ef375b1174d752a56ce34b2b190Patch, Third Party Advisory
https://github.com/wolfSSL/wolfssl/releases/tag/v4.3.0-stableRelease Notes, Third Party Advisory
https://github.com/wolfSSL/wolfssl/commit/7e391f0fd57f2ef375b1174d752a56ce34b2b190Patch, Third Party Advisory
https://github.com/wolfSSL/wolfssl/releases/tag/v4.3.0-stableRelease Notes, Third Party Advisory

Timeline

Published: Dec 25, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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