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Debian: CVE-2019-8320: jruby, ruby2.5, rubygems -- security update

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Debian: CVE-2019-8320: jruby, ruby2.5, rubygems -- security update

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:N/I:C/A:C)
Published
04/01/2019
Created
04/22/2019
Added
04/01/2019
Modified
11/04/2022

Description

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.

Solution(s)

  • debian-upgrade-jruby
  • debian-upgrade-ruby2-5
  • debian-upgrade-rubygems

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