Improper Verification of Cryptographic Signature Affecting starkbank-ecdsa Open this link in a new tab package, versions [,1.3.2)
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11 Nov 2021
10 Nov 2021
How to fix?
starkbank-ecdsa to version 1.3.2 or higher.
starkbank-ecdsa is a C# implementation of the Elliptic Curve Digital Signature Algorithm (ECDSA) by Stark Bank.
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the verify function that fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.