PyPi: M2crypto

CVE-2020-25657

Safety vulnerability ID: 65831

This vulnerability was reviewed by experts

The information on this page was manually curated by our Cybersecurity Intelligence Team.

Created at Jan 12, 2021 Updated at Nov 29, 2024

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Advisory

A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.

Affected package

m2crypto

Latest version: 0.43.0

A Python crypto and SSL toolkit

Affected versions

Fixed versions

Vulnerability changelog

This vulnerability has no description

Resources

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Severity Details

CVSS Base Score

MEDIUM 5.9

CVSS v3 Details

MEDIUM 5.9

Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality Impact (C): HIGH
Integrity Impact (I): NONE
Availability Availability (A): NONE

CVSS v2 Details

MEDIUM 4.3

Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (Au): NONE
Confidentiality Impact (C): PARTIAL
Integrity Impact (I): NONE
Availability Impact (A): NONE