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Directory Traversal Affecting ruby-doc package, versions <0:2.4.6-91.el7cf

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.61% (80th percentile)

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  • Snyk IDSNYK-RHEL7-RUBYDOC-3374359
  • 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 RHEL:7 ruby-doc to version 0:2.4.6-91.el7cf or higher.
This issue was patched in RHSA-2019:1429.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-doc package and not the ruby-doc package as distributed by RHEL. See How to fix? for RHEL:7 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.