CVE-2020-13822

HIGH

elliptic < 6.5.3 - ECDSA Signature Malleability via Encoding Variations

Title source: llm
STIX 2.1

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 (4)

Core 4
Core References
Third Party Advisory x_refsource_misc
https://www.npmjs.com/package/elliptic
Exploit, Third Party Advisory x_refsource_misc
https://github.com/indutny/elliptic/issues/226
Third Party Advisory x_refsource_misc
https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/

Scores

CVSS v3 7.7
EPSS 0.0263
EPSS Percentile 83.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Details

CWE
CWE-190
Status published
Products (2)
indutny/elliptic 6.5.2
npm/elliptic 0 - 6.5.3npm
Published Jun 04, 2020
Tracked Since Feb 18, 2026