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Arbitrary Command Injection Affecting ruby2.3 package, versions <2.3.3-1+deb9u10

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.07% (28th percentile)
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NVD
7 high
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SUSE
7.8 high
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Red Hat
7 high

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  • Snyk ID SNYK-DEBIAN9-RUBY23-1316287
  • published 8 Jul 2021
  • disclosed 30 Jul 2021
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Introduced: 8 Jul 2021

CVE-2021-31799 Open this link in a new tab
CWE-77 Open this link in a new tab

How to fix?

Upgrade Debian:9 ruby2.3 to version 2.3.3-1+deb9u10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.3 package and not the ruby2.3 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

In RDoc 3.11 through 6.x before 6.3.1, as distributed with Ruby through 3.0.1, it is possible to execute arbitrary code via | and tags in a filename.