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Link Following Affecting rubygem-psych package, versions <0:2.0.0-33.amzn2.0.1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.5% (77th percentile)

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  • Snyk IDSNYK-AMZN2-RUBYGEMPSYCH-1661272
  • published27 Sept 2021
  • disclosed13 Mar 2018
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Introduced: 13 Mar 2018

CVE-2018-1000073  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 rubygem-psych to version 0:2.0.0-33.amzn2.0.1 or higher.
This issue was patched in ALAS2-2018-983.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-psych package and not the rubygem-psych package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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 Directory Traversal vulnerability in install_location function of package.rb that can result in path traversal when writing to a symlinked basedir outside of the root. This vulnerability appears to have been fixed in 2.7.6.

References