An issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust. It can verify an invalid signature because it allows the R or S parameter to be larger than the curve order, aka an overflow.
{ "nvd_published_at": "2021-08-08T06:15:00Z", "github_reviewed_at": "2021-08-18T21:20:32Z", "severity": "CRITICAL", "github_reviewed": true, "cwe_ids": [ "CWE-190", "CWE-347" ] }