Homepage

Directory Traversal Affecting rubygem-psych package, versions <0:2.0.0-36.amzn2.0.1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.25% (65th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Directory Traversal vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2-RUBYGEMPSYCH-1673716
  • published27 Sept 2021
  • disclosed3 Apr 2018
Report a new vulnerability Found a mistake?

Introduced: 3 Apr 2018

CVE-2018-8780  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 rubygem-psych to version 0:2.0.0-36.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1276.

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.

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the Dir.open, Dir.new, Dir.entries and Dir.empty? methods do not check NULL characters. When using the corresponding method, unintentional directory traversal may be performed.

References