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Timing Attack Affecting m2crypto package, versions [,0.39.0)

0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.17% (54th percentile)
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NVD
5.9 medium
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-PYTHON-M2CRYPTO-1040426
  • published 15 Nov 2020
  • disclosed 13 Nov 2020
  • credit Hubert Kario
Report a new vulnerability Found a mistake?

Introduced: 13 Nov 2020

CVE-2020-25657 Open this link in a new tab
CWE-208 Open this link in a new tab

How to fix?

Upgrade M2Crypto to version 0.39.0 or higher.

Overview

M2Crypto is a M2Crypto: A Python crypto and SSL toolkit

Affected versions of this package are vulnerable to Timing Attack in the RSA decryption API via timed processing of valid PKCS#1 v1.5 ciphertext (Marvin).