CVE-2024-23342 – ecdsa

Package

Manager: pip
Name: ecdsa
Vulnerable Version: >=0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00622 pctl0.69175

Details

Minerva timing attack on P-256 in python-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.

Metadata

Created: 2024-01-22T21:35:27Z
Modified: 2025-07-30T18:17:40Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-wj6h-64fc-37mp/GHSA-wj6h-64fc-37mp.json
CWE IDs: ["CWE-203", "CWE-208", "CWE-385"]
Alternative ID: GHSA-wj6h-64fc-37mp
Finding: F026
Auto approve: 1