Is CVE-2020-36242 actively exploited?

CVE-2020-36242 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2020-36242?

CVE-2020-36242 has a CVSS score of 9.1 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

How do I patch CVE-2020-36242?

Patch guidance is available from cryptography.io security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-36242.

Fix CVE-2020-36242 - CRITICAL cryptography.io cryptography

Q: Which products are affected by CVE-2020-36242?

3 products: cryptography.io cryptography, fedoraproject fedora, oracle communications cloud native core network function cloud native environment.

Description

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: high
Weaknesses: CWE-190 · Integer Overflow CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: CRYPTOGRAPHY.IO
Published: 2/7/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

cryptography.io : cryptographyfedoraproject : fedoraoracle : communications_cloud_native_core_network_function_cloud_native_environment

Remediation Guidance

Executive Summary

View on NIST NVD