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CVE-2018-16395 Affecting ruby-irb package, versions <0:2.0.0.648-34.amzn2.0.1

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.81% (82nd percentile)

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  • Snyk ID SNYK-AMZN2-RUBYIRB-1668511
  • published 27 Sep 2021
  • disclosed 16 Nov 2018
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Introduced: 16 Nov 2018

CVE-2018-16395 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 ruby-irb to version 0:2.0.0.648-34.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1143.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-irb package and not the ruby-irb package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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.

References

CVSS Scores

version 3.1
Expand this section

SUSE

6.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None