Covert Timing Channel Affecting python-cryptography package, versions *


low

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.11% (44th percentile)
Expand this section
NVD
5.9 medium
Expand this section
SUSE
5.9 medium
Expand this section
Red Hat
5.9 medium

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-DEBIAN10-PYTHONCRYPTOGRAPHY-1022252
  • published 27 Oct 2020
  • disclosed 11 Jan 2021

How to fix?

There is no fixed version for Debian:10 python-cryptography.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-cryptography package and not the python-cryptography package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.