CVE-2020-36242 – cryptography

Package

Manager: pip
Name: cryptography
Vulnerable Version: >=3.1 <3.3.2

Severity

Level: High

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

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

EPSS: 0.01272 pctl0.78731

Details

PyCA Cryptography symmetrically encrypting large values can lead to integer overflow cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. When certain sequences of `update()` calls with large values (multiple GBs) for symetric encryption or decryption occur, it's possible for an integer overflow to happen, leading to mishandling of buffers. This is patched in version 3.3.2 and newer.

Metadata

Created: 2021-02-10T01:32:27Z
Modified: 2024-09-13T18:33:13Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/02/GHSA-rhm9-p9w5-fwm7/GHSA-rhm9-p9w5-fwm7.json
CWE IDs: ["CWE-190", "CWE-787"]
Alternative ID: GHSA-rhm9-p9w5-fwm7
Finding: F111
Auto approve: 1