CVE-2021-20270 (High) detected in Pygments-2.6.1-py3-none-any.whl

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CVE-2021-20270 - High Severity Vulnerability

Vulnerable Library - Pygments-2.6.1-py3-none-any.whl

Pygments is a syntax highlighting package written in Python.

Library home page: https://files.pythonhosted.org/packages/2d/68/106af3ae51daf807e9cdcba6a90e518954eb8b70341cee52995540a53ead/Pygments-2.6.1-py3-none-any.whl

Dependency Hierarchy:

• ❌ Pygments-2.6.1-py3-none-any.whl (Vulnerable Library)

Found in HEAD commit: 4e3aa8327ca6834d417f1c7de964019ba75cc2d1

Vulnerability Details

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.

Publish Date: 2021-03-23

URL: CVE-2021-20270

CVSS 3 Score Details (7.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-9w8r-397f-prfh

Release Date: 2021-03-23

Fix Resolution: Pygments - 20.12.3