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Security Advisories: GSA_kwCzR0hTQS00MzRnLTI2MzctcW1xcs4ABAJS

Elliptic's verify function omits uniqueness validation

The Elliptic package 6.5.5 for Node.js for EDDSA implementation does not perform the required check if the signature proof(s) is within the bounds of the order n of the base point of the elliptic curve, leading to signature malleability. Namely, the verify function in lib/elliptic/eddsa/index.js omits sig.S().gte(sig.eddsa.curve.n) || sig.S().isNeg() validation.

This vulnerability could have a security-relevant impact if an application relies on the uniqueness of a signature.

Permalink: https://github.com/advisories/GHSA-434g-2637-qmqr
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS00MzRnLTI2MzctcW1xcs4ABAJS
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Low
Classification: General
Published: 6 days ago
Updated: about 7 hours ago


CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Identifiers: GHSA-434g-2637-qmqr, CVE-2024-48949
References: Repository: https://github.com/indutny/elliptic
Blast Radius: 30.9

Affected Packages

npm:elliptic
Dependent packages: 2,976
Dependent repositories: 667,005
Downloads: 42,258,551 last month
Affected Version Ranges: < 6.5.6
Fixed in: 6.5.6
All affected versions: 0.1.0, 0.2.0, 0.3.0, 0.4.0, 0.5.0, 0.6.0, 0.6.1, 0.7.0, 0.8.0, 0.9.0, 0.9.1, 0.9.2, 0.10.0, 0.10.1, 0.10.2, 0.11.0, 0.11.1, 0.12.0, 0.13.1, 0.13.2, 0.14.0, 0.14.1, 0.14.2, 0.15.0, 0.15.1, 0.15.2, 0.15.3, 0.15.4, 0.15.5, 0.15.6, 0.15.7, 0.15.8, 0.15.9, 0.15.10, 0.15.11, 0.15.12, 0.15.13, 0.15.14, 0.15.15, 0.15.17, 0.16.0, 1.0.0, 1.0.1, 2.0.0, 2.0.1, 2.0.2, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.1.0, 4.0.0, 4.1.0, 5.0.0, 5.1.0, 5.2.0, 5.2.1, 6.0.0, 6.0.1, 6.0.2, 6.1.0, 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.3.0, 6.3.1, 6.3.2, 6.3.3, 6.4.0, 6.4.1, 6.5.0, 6.5.1, 6.5.2, 6.5.3, 6.5.4, 6.5.5
All unaffected versions: 6.5.6, 6.5.7