Signature Malleabillity in elliptic
The Elliptic package before version 6.5.3 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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-13822US | high7.7 | — | ||
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 secur… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/indutny/ellipticPACKAGE
- https://github.com/indutny/elliptic/commit/856fe4d99fe7b6200556e6400b3bf585b1721becWEB
- https://github.com/indutny/elliptic/issues/226WEB
- https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4WEB
- https://medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4WEB
- https://nvd.nist.gov/vuln/detail/CVE-2020-13822ADVISORY
- https://www.npmjs.com/package/ellipticWEB
- https://yondon.blog/2019/01/01/how-not-to-use-ecdsaWEB
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