CVE-2024-42459: Elliptic's EDDSA missing signature length check

August 2, 2024 (updated August 5, 2024)

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.

References

github.com/advisories/GHSA-f7q4-pwc6-w24p
github.com/indutny/elliptic
github.com/indutny/elliptic/commit/c0690b36be043ee73c1780ae4b7df48632b11cf9
github.com/indutny/elliptic/pull/317
nvd.nist.gov/vuln/detail/CVE-2024-42459

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