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CVE-2024-23342 — python-ecdsa vulnerable to Minerva attack on P-256

Affected: tlsfuzzer python-ecdsa

The `ecdsa` PyPI package is a pure Python implementation of ECC (Elliptic Curve Cryptography) with support for ECDSA (Elliptic Curve Digital Signature Algorithm), EdDSA (Edwards-curve Digital Signature Algorithm) and ECDH (Elliptic Curve Diffie-Hellman). Versions 0.18.0 and prior are vulnerable to the Minerva attack. As of time of publication, no known patched version exists.

GHSA-wj6h-64fc-37mp — Minerva timing attack on P-256 in python-ecdsa

Affected: PyPI: ecdsa

python-ecdsa has been found to be subject to a Minerva timing attack on the P-256 curve. Using the `ecdsa.SigningKey.sign_digest()` API function and timing signatures an attacker can leak the internal nonce which may allow for private key discovery. Both ECDSA signatures, key generation, and ECDH operations are affected. ECDSA signature verification is unaffected. The python-ecdsa project considers side channel attacks out of scope for the project and there is no planned fix.

PYSEC-2026-1325 — Minerva timing attack on P-256 in python-ecdsa

Affected: PyPI: ecdsa