Improper Certificate Validation Affecting rh-ruby23-rubygem-power_assert package, versions <0:0.2.6-69.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.66% (80th percentile)

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  • Snyk IDSNYK-RHEL7-RHRUBY23RUBYGEMPOWERASSERT-4752534
  • published26 Jul 2021
  • disclosed17 Oct 2018

Introduced: 17 Oct 2018

CVE-2018-16395  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:7 rh-ruby23-rubygem-power_assert to version 0:0.2.6-69.el7 or higher.
This issue was patched in RHSA-2018:3729.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-ruby23-rubygem-power_assert package and not the rh-ruby23-rubygem-power_assert package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.

CVSS Base Scores

version 3.1