Skip to content
OpenAdvisories
High ALAS2-2019-1143 1 CVE

Important: ruby security update (Amazon Linux 2)

Published Jan 7, 2019 · Updated Jan 9, 2019

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-16395: 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. 1643086: CVE-2018-16395 ruby: OpenSSL::X509::Name equality check does not work correctly

Fixed packages 16

ReleasePackageFixed in
Amazon Linux · 2 ruby 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 ruby-debuginfo 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 ruby-devel 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 ruby-doc 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 ruby-irb 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 ruby-libs 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 ruby-tcltk 0:2.0.0.648-34.amzn2.0.1
Amazon Linux · 2 rubygem-bigdecimal 0:1.2.0-34.amzn2.0.1
Amazon Linux · 2 rubygem-io-console 0:0.4.2-34.amzn2.0.1
Amazon Linux · 2 rubygem-json 0:1.7.7-34.amzn2.0.1
Amazon Linux · 2 rubygem-minitest 0:4.3.2-34.amzn2.0.1
Amazon Linux · 2 rubygem-psych 0:2.0.0-34.amzn2.0.1
Amazon Linux · 2 rubygem-rake 0:0.9.6-34.amzn2.0.1
Amazon Linux · 2 rubygem-rdoc 0:4.0.0-34.amzn2.0.1
Amazon Linux · 2 rubygems 0:2.0.14.1-34.amzn2.0.1
Amazon Linux · 2 rubygems-devel 0:2.0.14.1-34.amzn2.0.1

Vulnerabilities 1

  • Critical 9.8
    CVE-2018-16395 EPSS 11%

    Ruby Openssl Allows Incorrect Value Comparison

    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 t…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2018-16395.html