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Arbitrary Code Injection Affecting rubygems-update package, versions >=2.6.0, <2.7.9 >=3.0.0, <3.0.3

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.15% (51st percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
5.3 medium

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  • Snyk ID SNYK-RUBY-RUBYGEMSUPDATE-598860
  • published 18 Aug 2020
  • disclosed 20 Jun 2019
  • credit Unknown
Report a new vulnerability Found a mistake?

Introduced: 20 Jun 2019

CVE-2019-8321 Open this link in a new tab
CWE-94 Open this link in a new tab

How to fix?

Upgrade rubygems-update to version 2.7.9, 3.0.3 or higher.

Overview

rubygems-update is an inbuilt rubygem for updating rubygems.

Affected versions of this package are vulnerable to Arbitrary Code Injection due to the Gem::UserInteraction#verbose function which calls say without escaping.