CVE-2020-36242 (High) detected in cryptography-2.8-cp27-cp27mu-manylinux1_x86_64.whl

[mend-bolt-for-github]

CVE-2020-36242 - High Severity Vulnerability

Vulnerable Library - cryptography-2.8-cp27-cp27mu-manylinux1_x86_64.whl

cryptography is a package which provides cryptographic recipes and primitives to Python developers.

Library home page: https://files.pythonhosted.org/packages/e2/67/4597fc5d5de01bb44887844647ab8e73239079dd478c35c52d58a9eb3d45/cryptography-2.8-cp27-cp27mu-manylinux1_x86_64.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /requirements.txt

Dependency Hierarchy:

• python_telegram_bot-11.1.0-py2.py3-none-any.whl (Root Library)
  • ❌ cryptography-2.8-cp27-cp27mu-manylinux1_x86_64.whl (Vulnerable Library)

Vulnerability Details

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.

Publish Date: 2021-02-07

URL: CVE-2020-36242

CVSS 3 Score Details (9.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2021-02-07

Fix Resolution (cryptography): 3.3.2

Direct dependency fix Resolution (python-telegram-bot): 12.0.0

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