Vulnerability Details CVE-2020-13822
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 41.1%
CVSS Severity
CVSS v3 Score 7.7
CVSS v2 Score 6.8
References
- https://github.com/indutny/elliptic/issues/226
- https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
- https://www.npmjs.com/package/elliptic
- https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/
- https://github.com/indutny/elliptic/issues/226
- https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
- https://www.npmjs.com/package/elliptic
- https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/