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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-11-09T21:05:20

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

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

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.