CVE - CVE-2021-43572

CVE-ID
CVE-2021-43572	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/starkbank/ecdsa-python/commit/d136170666e9510eb63c2572551805807bd4c17f MISC:https://github.com/starkbank/ecdsa-python/releases/tag/v2.0.1 URL:https://github.com/starkbank/ecdsa-python/releases/tag/v2.0.1 MISC:https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/ URL:https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/
Assigning CNA
MITRE Corporation
Date Record Created
20211109	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20211109)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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