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Medium RLSA-2023:7025 4 CVEs

Moderate: ruby:2.5 security update

Published Apr 14, 2026 · Updated Apr 14, 2026

Ecosystem: Rocky Linux

Summary

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

Security Fix(es):

* ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)

* ruby: Buffer overrun in String-to-Float conversion (CVE-2022-28739)

* ruby: ReDoS vulnerability in URI (CVE-2023-28755)

* ruby: ReDoS vulnerability in Time (CVE-2023-28756)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.9 Release Notes linked from the References section.

Fixed packages 8

ReleasePackageFixed in
Rocky Linux · 8 ruby 0:2.5.9-111.module+el8.9.0+1536+5f79634e
Rocky Linux · 8 rubygem-abrt 0:0.3.0-4.module+el8.9.0+1536+5f79634e
Rocky Linux · 8 rubygem-abrt 0:0.3.0-4.module+el8.5.0+738+032c9c02
Rocky Linux · 8 rubygem-bson 0:4.3.0-2.module+el8.9.0+1536+5f79634e
Rocky Linux · 8 rubygem-bundler 0:1.16.1-4.module+el8.9.0+1536+5f79634e
Rocky Linux · 8 rubygem-mongo 0:2.5.1-2.module+el8.9.0+1536+5f79634e
Rocky Linux · 8 rubygem-mysql2 0:0.4.10-4.module+el8.9.0+1536+5f79634e
Rocky Linux · 8 rubygem-pg 0:1.0.0-3.module+el8.9.0+1536+5f79634e

Vulnerabilities 4

  • High 8.8
    CVE-2021-33621

    HTTP response splitting in CGI

    The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.

    ruby2.3 ruby ruby2.5 jruby Debian Ubuntu Alpine RubyGems
  • High 7.5
    CVE-2023-28756

    Ruby Time component ReDoS issue

    A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are …

    ruby2.3 ruby ruby2.5 jruby Debian Ubuntu Alpine Wolfi RubyGems
  • Medium 5.3
    CVE-2023-28755

    Ruby URI component ReDoS issue

    A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.…

    ruby2.3 ruby ruby2.5 jruby Debian Ubuntu Alpine Wolfi RubyGems
  • Unscored —
    CVE-2022-28739

    There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occ…

    ruby2.3 ruby ruby2.5 ruby2.7 Debian Ubuntu Alpine

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2075687
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2149706
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2184059
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2184061