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.
Published: 2021-11-09
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-0251 The verify function in the Stark Bank Python ECDSA library (ecdsa-python) 2.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
Github GHSA Github GHSA GHSA-92vm-mxjf-jqf3 Improper Verification of Cryptographic Signature in starkbank-ecdsa
History

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Subscriptions

Starkbank Ecdsa-python
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T04:03:08.126Z

Reserved: 2021-11-09T00:00:00.000Z

Link: CVE-2021-43572

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-11-09T22:15:07.727

Modified: 2024-11-21T06:29:27.950

Link: CVE-2021-43572

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses