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Path to dependency file: clusterfuzz/src/python/bot/tasks
Path to vulnerable library: clusterfuzz/src/python/bot/tasks,clusterfuzz/src/local/butler/scripts,clusterfuzz/src/appengine/requirements.txt,clusterfuzz/src/appengine/handlers/cron/project,clusterfuzz/src/requirements.txt,clusterfuzz/src/platform_requirements.txt
PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.
CVE-2019-20477 - High Severity Vulnerability
Vulnerable Library - PyYAML-5.1.tar.gz
YAML parser and emitter for Python
Library home page: https://files.pythonhosted.org/packages/9f/2c/9417b5c774792634834e730932745bc09a7d36754ca00acf1ccd1ac2594d/PyYAML-5.1.tar.gz
Path to dependency file: clusterfuzz/src/python/bot/tasks
Path to vulnerable library: clusterfuzz/src/python/bot/tasks,clusterfuzz/src/local/butler/scripts,clusterfuzz/src/appengine/requirements.txt,clusterfuzz/src/appengine/handlers/cron/project,clusterfuzz/src/requirements.txt,clusterfuzz/src/platform_requirements.txt
Dependency Hierarchy:
Found in HEAD commit: aefe4b0859891117218fba5984e5c3e753ea9597
Vulnerability Details
PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.
Publish Date: 2020-02-19
URL: CVE-2019-20477
CVSS 3 Score Details (9.8)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20477
Release Date: 2020-02-19
Fix Resolution: 5.2
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