GitHub Advisoryadvisory · PyPI

GHSA-92vm-mxjf-jqf3 Improper Verification of Cryptographic Signature in starkbank-ecdsa

CRITICAL Published 2021-11-10 Modified 2024-10-25 Official page ↗
Aliases
CVE-2021-43572
Ecosystem
PyPI
Packages
starkbank-ecdsa
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-347
Reviewed
2021-11-10

Affected packages

• PyPI starkbank-ecdsa: < 2.0.1 → fixed in 2.0.1

Description

The `verify` function in the Stark Bank Python ECDSA library (starkbank-ecdsa) 2.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

Related

Alias · CVE (1)

  • CVE-2021-43572 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… vulnerability

Weakness · CWE (1)

  • CWE-347 Improper Verification of Cryptographic Signature weakness

References