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Arbitrary Code Execution Affecting rubygems-update package, versions <2.7.8 >=3.0.0, <3.0.3

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.27% (68th percentile)
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NVD
8.8 high
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SUSE
7.8 high
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Red Hat
7.2 high

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  • Snyk ID SNYK-RUBY-RUBYGEMSUPDATE-472652
  • published 13 Nov 2019
  • disclosed 5 Mar 2019
  • credit nyangawa of Chaitin Tech
Report a new vulnerability Found a mistake?

Introduced: 5 Mar 2019

CVE-2019-8324 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade rubygems-update to version 2.7.8, 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 Execution. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker can inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check.