CVE-2021-43572
Improper Verification of Cryptographic Signature in starkbank-ecdsa
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, GHSA.
Descripción
The verify function in the Stark Bank Python ECDSA library (aka starkbank-escada or ecdsa-python) before 2.0.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| pip::GitHub Security Advisory pip | starkbank-ecdsa | 2.0.1 |
Referencias
- https://github.com/pypa/advisory-database/tree/main/vulns/starkbank-ecdsa/PYSEC-2021-426.yaml
- https://github.com/starkbank/ecdsa-python
- https://github.com/starkbank/ecdsa-python/commit/d136170666e9510eb63c2572551805807bd4c17f
- https://github.com/starkbank/ecdsa-python/releases/tag/v2.0.1
- https://nvd.nist.gov/vuln/detail/CVE-2021-43572
- https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries
- https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/