Arbitrary Command Injection Affecting ruby20-debuginfo package, versions <0:2.0.0.648-2.40.amzn1


Severity

Recommended
low

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.48% (71st percentile)

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  • Snyk IDSNYK-AMZN201803-RUBY20DEBUGINFO-1726378
  • published27 Sept 2021
  • disclosed30 Jul 2021

Introduced: 30 Jul 2021

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

How to fix?

Upgrade Amazon-Linux:2018.03 ruby20-debuginfo to version 0:2.0.0.648-2.40.amzn1 or higher.
This issue was patched in ALAS-2021-1505.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby20-debuginfo package and not the ruby20-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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 Base Scores

version 3.1