CVE-2021-33503 (High) detected in urllib3-1.25.3-py2.py3-none-any.whl

[mend-bolt-for-github[bot]]

CVE-2021-33503 - High Severity Vulnerability

Vulnerable Library - urllib3-1.25.3-py2.py3-none-any.whl

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

Library home page: https://files.pythonhosted.org/packages/e6/60/247f23a7121ae632d62811ba7f273d0e58972d75e58a94d329d51550a47d/urllib3-1.25.3-py2.py3-none-any.whl

Path to dependency file: /E-voting-using-blockchain/evoting app/src/bower_components/bootstrap-datepicker/docs/requirements.txt

Path to vulnerable library: /teSource-ArchiveExtractor_18f81df3-59bd-4533-b394-40c3cf63865d/20190614173502_33285/20190614173450_depth_0/urllib3-1.25.3-py2.py3-none-any/urllib3

Dependency Hierarchy: - :x: **urllib3-1.25.3-py2.py3-none-any.whl** (Vulnerable Library)

Found in HEAD commit: 3c02898f89d78283ce791eb1b53b2b5a667681ad

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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