Skip to content
OpenAdvisories
Medium ALSA-2024:3838 6 CVEs

Moderate: ruby security update

Published Jun 11, 2024 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

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

The following packages have been upgraded to a later upstream version: ruby
(3.0). (AlmaLinux-35740)

Security Fix(es):

* ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)
* ruby: ReDoS vulnerability in URI (CVE-2023-28755)
* ruby: ReDoS vulnerability in Time (CVE-2023-28756)
* ruby: Buffer overread vulnerability in StringIO (CVE-2024-27280)
* ruby: RCE vulnerability with .rdoc_options in RDoc (CVE-2024-27281)
* ruby: Arbitrary memory address read vulnerability with Regex search (CVE-2024-27282)

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.

Fixed packages 22

ReleasePackageFixed in
AlmaLinux · 9 ruby 3.0.7-162.el9_4
AlmaLinux · 9 ruby-default-gems 3.0.7-162.el9_4
AlmaLinux · 9 ruby-devel 3.0.7-162.el9_4
AlmaLinux · 9 ruby-doc 3.0.7-162.el9_4
AlmaLinux · 9 ruby-libs 3.0.7-162.el9_4
AlmaLinux · 9 rubygem-bigdecimal 3.0.0-162.el9_4
AlmaLinux · 9 rubygem-bundler 2.2.33-162.el9_4
AlmaLinux · 9 rubygem-io-console 0.5.7-162.el9_4
AlmaLinux · 9 rubygem-irb 1.3.5-162.el9_4
AlmaLinux · 9 rubygem-json 2.5.1-162.el9_4
AlmaLinux · 9 rubygem-minitest 5.14.2-162.el9_4
AlmaLinux · 9 rubygem-power_assert 1.2.1-162.el9_4
AlmaLinux · 9 rubygem-psych 3.3.2-162.el9_4
AlmaLinux · 9 rubygem-rake 13.0.3-162.el9_4
AlmaLinux · 9 rubygem-rbs 1.4.0-162.el9_4
AlmaLinux · 9 rubygem-rdoc 6.3.4.1-162.el9_4
AlmaLinux · 9 rubygem-rexml 3.2.5-162.el9_4
AlmaLinux · 9 rubygem-rss 0.2.9-162.el9_4
AlmaLinux · 9 rubygem-test-unit 3.3.7-162.el9_4
AlmaLinux · 9 rubygem-typeprof 0.15.2-162.el9_4
AlmaLinux · 9 rubygems 3.2.33-162.el9_4
AlmaLinux · 9 rubygems-devel 3.2.33-162.el9_4

Vulnerabilities 6

  • Critical 9.8
    CVE-2024-27280

    StringIO buffer overread vulnerability

    A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return t…

    ruby2.3 ruby ruby2.5 ruby2.7 Debian Ubuntu Alpine Wolfi RubyGems
  • 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 6.6
    CVE-2024-27282

    An issue was discovered in Ruby 3.x through 3.3.0. If attacker-supplied data is provided to the Ruby regex compiler, it…

    ruby2.3 ruby ruby2.5 jruby Debian Ubuntu Azure Linux Alpine
  • 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
  • Medium 4.5
    CVE-2024-27281

    RDoc RCE vulnerability with .rdoc_options

    An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no r…

    ruby2.3 ruby ruby2.5 jruby Debian Ubuntu Azure Linux Alpine Wolfi RubyGems

References

  • report
    https://access.redhat.com/security/cve/CVE-2021-33621
  • report
    https://access.redhat.com/security/cve/CVE-2023-28755
  • report
    https://access.redhat.com/security/cve/CVE-2023-28756
  • report
    https://access.redhat.com/security/cve/CVE-2024-27280
  • report
    https://access.redhat.com/security/cve/CVE-2024-27281
  • report
    https://access.redhat.com/security/cve/CVE-2024-27282
  • report
    https://bugzilla.redhat.com/2149706
  • report
    https://bugzilla.redhat.com/2184059
  • report
    https://bugzilla.redhat.com/2184061
  • report
    https://bugzilla.redhat.com/2270749
  • report
    https://bugzilla.redhat.com/2270750
  • report
    https://bugzilla.redhat.com/2276810
  • advisory
    https://errata.almalinux.org/9/ALSA-2024-3838.html