Elliptic's EDDSA missing signature length check

Description

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Recommendation

Update the elliptic package to the latest compatible version. Followings are version details:

• Affected version(s): >= 4.0.0, <= 6.5.6
• Patched version(s): 6.5.7

References

• GHSA-f7q4-pwc6-w24p
• security.netapp.com
• CVE-2024-42459
• CWE-347
• CAPEC-310
• OWASP 2021-A2
• OWASP 2021-A6

Related Issues

• Elliptic's ECDSA missing check for whether leading bit of r and s is zero - CVE-2024-42460
• Forge has signature forgery in Ed25519 due to missing S > L check - CVE-2026-33895
• Elliptic allows BER-encoded signatures - CVE-2024-42461
• Elliptic's verify function omits uniqueness validation - CVE-2024-48949

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How to Secure your NodeJs Express Javascript Application - part 2

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Tags:

npm

elliptic