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Status published
Critical
CVE-2021-43572
The verify function in the Stark Bank Python ECDSA library...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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CVE-2021-43569
The verify function in the Stark Bank .NET ECDSA library...
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CVE-2021-43568
The verify function in the Stark Bank Elixir ECDSA library...
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Affected Vendor
starkbank
View all reports →Affected Software
ecdsa-python
Vulnerable Versions:
0
Timeline
Official Publish:
November 9th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.