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Directory Traversal Affecting ruby package, versions <0:2.5.5-105.module+el8.1.0+3656+f80bfa1d

Severity

 Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.82% (82nd percentile)

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  • Snyk IDSNYK-CENTOS8-RUBY-1976641
  • published26 Jul 2021
  • disclosed5 Mar 2019
Report a new vulnerability Found a mistake?

Introduced: 5 Mar 2019

CVE-2019-8320  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Centos:8 ruby to version 0:2.5.5-105.module+el8.1.0+3656+f80bfa1d or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby package and not the ruby package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.