RubyGems Deserialization of Untrusted Data vulnerability
Date: 2022-05
Affected: maven/org.jruby:jruby-stdlib, rubygems/rubygems-update
Attack vector: deserialization
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2018-1000074
CWE: CWE-502
CVSS: 7.8 (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

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 Deserialization of Untrusted Data vulnerability in owner command that can result in code execution. This attack requires the victim to run the `gem owner` command on a gem with a specially crafted YAML file. This vulnerability is fixed in 2.7.6.


Mitigations:

Architectural layers (MAESTRO):