CVE-2021-33503 (High) detected in urllib3-1.24.3-py2.py3-none-any.whl

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CVE-2021-33503 - High Severity Vulnerability

Vulnerable Library - urllib3-1.24.3-py2.py3-none-any.whl

HTTP library with thread-safe connection pooling, file post, and more.

Library home page: https://files.pythonhosted.org/packages/01/11/525b02e4acc0c747de8b6ccdab376331597c569c42ea66ab0a1dbd36eca2/urllib3-1.24.3-py2.py3-none-any.whl

Path to dependency file: /fs-agent/src/test/resources/resolver/python/sample/requirements.txt

Path to vulnerable library: /teSource-ArchiveExtractor_0279d367-0181-4fb1-9133-211968531759/20190614192850_34573/20190614192838_depth_0/urllib3-1.24.3-py2.py3-none-any/urllib3

Dependency Hierarchy: - :x: **urllib3-1.24.3-py2.py3-none-any.whl** (Vulnerable Library)

Found in base branch: master

Vulnerability Details

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.

Publish Date: 2021-06-29

URL: CVE-2021-33503

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: https://github.com/urllib3/urllib3/security/advisories/GHSA-q2q7-5pp4-w6pg

Release Date: 2021-06-29

Fix Resolution: 1.26.5

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