Improper Input Validation Affecting python38-cffi package, versions <0:1.13.2-3.module+el8.2.0+5234+f98739b6


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.54% (78th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON38CFFI-2076947
  • published26 Jul 2021
  • disclosed2 Mar 2020

Introduced: 2 Mar 2020

CVE-2020-1747  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Centos:8 python38-cffi to version 0:1.13.2-3.module+el8.2.0+5234+f98739b6 or higher.

NVD Description

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

A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.

References

CVSS Scores

version 3.1