Deserialization of Untrusted Data Affecting ruby-irb package, versions <0:2.0.0.648-33.amzn2.0.1


Severity

Recommended
medium

    Threat Intelligence

    EPSS
    2.16% (90th percentile)

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  • Snyk ID SNYK-AMZN2-RUBYIRB-1661225
  • published 27 Sep 2021
  • disclosed 13 Mar 2018

How to fix?

Upgrade Amazon-Linux:2 ruby-irb to version 0:2.0.0.648-33.amzn2.0.1 or higher.
This issue was patched in ALAS2-2018-983.

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.

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack appear to be exploitable via victim must run the gem owner command on a gem with a specially crafted YAML file. This vulnerability appears to have been fixed in 2.7.6.

CVSS Scores

version 3.1
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Snyk

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

7.8 high
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SUSE

7.8 high
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Red Hat

7.8 high