CVE-2020-13822

high

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.

References

https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/

https://www.npmjs.com/package/elliptic

https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4

https://github.com/indutny/elliptic/issues/226

Details

Source: Mitre, NVD

Published: 2020-06-04

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.7

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Severity: High