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Related Vulnerabilities: CVE-2020-10663

The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent. (CVE-2020-10663)

Source

ALAS-2020-1426

Amazon Linux AMI Security Advisory: ALAS-2020-1426
Advisory Release Date: 2020-08-26 23:10 Pacific
Advisory Updated Date: 2020-08-31 20:33 Pacific

Severity: Medium

References: CVE-2020-10663

Issue Overview:

The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent. (CVE-2020-10663)

Affected Packages:

ruby19, ruby21

Issue Correction:
Run yum update ruby19 to update your system.
Run yum update ruby21 to update your system.

New Packages:

i686:
    ruby21-libs-2.1.9-1.23.amzn1.i686
    rubygem21-io-console-0.4.3-1.23.amzn1.i686
    ruby21-2.1.9-1.23.amzn1.i686
    rubygem21-bigdecimal-1.2.4-1.23.amzn1.i686
    ruby21-devel-2.1.9-1.23.amzn1.i686
    ruby21-debuginfo-2.1.9-1.23.amzn1.i686
    rubygem21-psych-2.0.5-1.23.amzn1.i686
    ruby19-debuginfo-1.9.3.551-33.71.amzn1.i686
    ruby19-1.9.3.551-33.71.amzn1.i686
    rubygem19-bigdecimal-1.1.0-33.71.amzn1.i686
    ruby19-doc-1.9.3.551-33.71.amzn1.i686
    ruby19-libs-1.9.3.551-33.71.amzn1.i686
    rubygem19-json-1.5.5-33.71.amzn1.i686
    ruby19-devel-1.9.3.551-33.71.amzn1.i686
    rubygem19-io-console-0.3-33.71.amzn1.i686

noarch:
    rubygems21-2.2.5-1.23.amzn1.noarch
    ruby21-irb-2.1.9-1.23.amzn1.noarch
    ruby21-doc-2.1.9-1.23.amzn1.noarch
    rubygems21-devel-2.2.5-1.23.amzn1.noarch
    rubygem19-rake-0.9.2.2-33.71.amzn1.noarch
    rubygem19-minitest-2.5.1-33.71.amzn1.noarch
    rubygems19-1.8.23.2-33.71.amzn1.noarch
    ruby19-irb-1.9.3.551-33.71.amzn1.noarch
    rubygems19-devel-1.8.23.2-33.71.amzn1.noarch
    rubygem19-rdoc-3.9.5-33.71.amzn1.noarch

src:
    ruby21-2.1.9-1.23.amzn1.src
    ruby19-1.9.3.551-33.71.amzn1.src

x86_64:
    ruby21-devel-2.1.9-1.23.amzn1.x86_64
    ruby21-2.1.9-1.23.amzn1.x86_64
    ruby21-debuginfo-2.1.9-1.23.amzn1.x86_64
    rubygem21-io-console-0.4.3-1.23.amzn1.x86_64
    rubygem21-psych-2.0.5-1.23.amzn1.x86_64
    rubygem21-bigdecimal-1.2.4-1.23.amzn1.x86_64
    ruby21-libs-2.1.9-1.23.amzn1.x86_64
    rubygem19-bigdecimal-1.1.0-33.71.amzn1.x86_64
    rubygem19-io-console-0.3-33.71.amzn1.x86_64
    ruby19-debuginfo-1.9.3.551-33.71.amzn1.x86_64
    ruby19-1.9.3.551-33.71.amzn1.x86_64
    ruby19-libs-1.9.3.551-33.71.amzn1.x86_64
    ruby19-doc-1.9.3.551-33.71.amzn1.x86_64
    ruby19-devel-1.9.3.551-33.71.amzn1.x86_64
    rubygem19-json-1.5.5-33.71.amzn1.x86_64

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ALAS-2020-1426

ALAS-2020-1426

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