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Deserialization of Untrusted Data Affecting rubygem20-psych package, versions <0:2.0.0-1.31.amzn1

Severity

 Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
2.28% (90th percentile)

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  • Snyk IDSNYK-AMZN201803-RUBYGEM20PSYCH-1712141
  • published27 Sept 2021
  • disclosed13 Mar 2018
Report a new vulnerability Found a mistake?

Introduced: 13 Mar 2018

CVE-2018-1000074  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 rubygem20-psych to version 0:2.0.0-1.31.amzn1 or higher.
This issue was patched in ALAS-2018-983.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem20-psych package and not the rubygem20-psych package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack appear to be exploitable via victim must run the gem owner command on a gem with a specially crafted YAML file. This vulnerability appears to have been fixed in 2.7.6.

References