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CVE-2021-43572

CVE-2021-43572

EPSS 1.2%
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.
Productos afectados
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Referencias
https://github.com/starkbank/ecdsa-python/commit/d136170666e9510eb63c2572551805807bd4c17fhttps://github.com/starkbank/ecdsa-python/releases/tag/v2.0.1https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/