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


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.33% (71st percentile)

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  • Snyk IDSNYK-RUBY-RUBYGEMSUPDATE-598860
  • published18 Aug 2020
  • disclosed20 Jun 2019
  • creditUnknown

Introduced: 20 Jun 2019

CVE-2019-8321  (opens in a new tab)
CWE-94  (opens 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.

CVSS Scores

version 3.1