CVE-2019-20477

Deserialization of Untrusted Data in PyYAML

Description

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.

Patch Available

Fix available through Seal Security.  
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Fix without upgrading

Score

Severity

Ecosystem

RPM

Publish Date

February 18, 2020

Modified Date

November 7, 2023

Score Vector

Affected Versions