The verify
function in the Stark Bank Python ECDSA library (starkbank-ecdsa) 2.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
{ "nvd_published_at": "2021-11-09T22:15:00Z", "cwe_ids": [ "CWE-347" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2021-11-10T18:23:18Z" }