Deserialization of Untrusted Data Affecting python38-mod_wsgi package, versions <0:4.6.8-3.module+el8.2.0+5234+f98739b6


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
5.11% (92nd percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON38MODWSGI-2077117
  • published26 Jul 2021
  • disclosed18 Nov 2019

Introduced: 18 Nov 2019

CVE-2019-20477  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Centos:8 python38-mod_wsgi to version 0:4.6.8-3.module+el8.2.0+5234+f98739b6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python38-mod_wsgi package and not the python38-mod_wsgi package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1