7.5
CVSSv2

CVE-2019-20477

Published: 19/02/2020 Updated: 07/11/2023
CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 668
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

PyYAML 5.1 up to and including 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.

Vulnerability Trend

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pyyaml pyyaml

fedoraproject fedora 30

fedoraproject fedora 31

Vendor Advisories

Synopsis Moderate: Red Hat Quay v340 security update Type/Severity Security Advisory: Moderate Topic Red Hat Quay 340 is now available with bug fixes and variousenhancementsRed Hat Product Security has rated this update as having a security impact of Moderate A Common Vulnerability Scoring System (CVS ...
Synopsis Moderate: python38:38 security, bug fix, and enhancement update Type/Severity Security Advisory: Moderate Topic An update for the python38:38 module is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update as having a security impact of Moderate A Common Vul ...