CVE-2021-43569

Published November 9th, 2021

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CVSS v3

9.8

CRITICAL

CVSS v2

7.5

HIGH

Affected

PROJECT

Description

The verify function in the Stark Bank .NET ECDSA library (ecdsa-dotnet) 1.3.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

starkbank/ecdsa-dotnet

A lightweight and fast pure C# ECDSA library

GitHub