cve/2020/CVE-2020-13822.md

CVE-2020-13822

Description

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.

POC

Reference

• https://github.com/indutny/elliptic/issues/226
• https://github.com/indutny/elliptic/issues/226
• https://medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
• https://medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4

Github

No PoCs found on GitHub currently.