Arbitrary Command Injection Affecting ruby2.5 package, versions <2.5.1-1ubuntu1.10


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (31st percentile)

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  • Snyk IDSNYK-UBUNTU1804-RUBY25-1319173
  • published15 Jul 2021
  • disclosed30 Jul 2021

Introduced: 15 Jul 2021

CVE-2021-31799  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 ruby2.5 to version 2.5.1-1ubuntu1.10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.5 package and not the ruby2.5 package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 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.

CVSS Scores

version 3.1