CVE-2019-19963
Last modified
CVE-2019-19963 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.
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/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | < 4.3.0 |
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
- Last Modified
- Status
- Modified
Frequently Asked Questions
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