critical9.8
CVE-2021-43569
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 si…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Starkbank | Ecdsa-Dotnet | Version 1.3.2 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/starkbank/ecdsa-dotnet/releases/tag/v1.3.2
- https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/
- https://github.com/starkbank/ecdsa-dotnet/releases/tag/v1.3.2
- https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/