Improper Certificate Validation Affecting python27:2.7/python2-ipaddress package, versions <0:1.0.18-6.module+el8.1.0+3111+de3f2d8e


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.48% (76th percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON27-4373312
  • published26 Jul 2021
  • disclosed17 Apr 2019

Introduced: 17 Apr 2019

CVE-2019-11324  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:8 python27:2.7/python2-ipaddress to version 0:1.0.18-6.module+el8.1.0+3111+de3f2d8e or higher.
This issue was patched in RHSA-2019:3335.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python27:2.7/python2-ipaddress package and not the python27:2.7/python2-ipaddress package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument.