Homepage
About Snyk

Timing Attack Affecting fastecdsa package, versions [0, 2.1.4)

0.0
medium

Snyk CVSS

    Attack Complexity High
    Integrity High

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-PYTHON-FASTECDSA-511943
  • published 13 Nov 2019
  • disclosed 2 Oct 2019
  • credit Centre for Research on Cryptography and Security
Report a new vulnerability Found a mistake?

Introduced: 2 Oct 2019

CVE NOT AVAILABLE CWE-362 Open this link in a new tab

How to fix?

Upgrade fastecdsa to version 2.1.4 or higher.

Overview

fastecdsa is a python package for doing fast elliptic curve cryptography, specifically digital signatures.

Affected versions of this package are vulnerable to Timing Attack. Practical recovery of the long-term private key generated by the library is possible under certain conditions. Leakage of bit-length of a scalar during scalar multiplication is possible on an elliptic curve which might allow practical recovery of the long-term private key.