CVE-2019-14859 – ecdsa

Package

Manager: pip
Name: ecdsa
Vulnerable Version: >=0 <0.13.3

Severity

Level: Critical

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

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

EPSS: 0.00065 pctl0.20702

Details

Improper Verification of Cryptographic Signature in Pure-Python ECDSA A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.

Metadata

Created: 2020-04-01T16:35:26Z
Modified: 2024-09-20T16:52:23Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/04/GHSA-8qxj-f9rh-9fg2/GHSA-8qxj-f9rh-9fg2.json
CWE IDs: ["CWE-347"]
Alternative ID: GHSA-8qxj-f9rh-9fg2
Finding: F163
Auto approve: 1