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CVE-2021-43572GHSA-92VM-MXJF-JQF3PYSEC-2021-426

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 signa

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.0.1
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • n/a n/a

    Version range not reported

  • starkbank-ecdsaPyPI

    fixed in 2.0.1

References 3

research.nccgroup.com

GitHub · starkbank/ecdsa-python