Red Hat Security Advisory: ruby:3.1 security update

Fixed packages 42

Vulnerabilities 7

• Medium 5.9
  CVE-2024-43398

  REXML denial of service vulnerability

  REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you…

  ruby rexml kube-fluentd-operator ruby2.3 Debian Ubuntu Azure Linux Alpine Wolfi RubyGems
  Aug 22, 2024
• Medium 5.8
  CVE-2025-27219

  CGI has Denial of Service (DoS) potential in Cookie.parse

  In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead …

  ruby-lang CGI ruby2.3 ruby Debian Ubuntu Azure Linux Alpine Wolfi RubyGems
  Mar 3, 2025
• Medium 5.3
  CVE-2024-41123

  REXML DoS vulnerability

  REXML is an XML toolkit for Ruby. The REXML gem before 3.3.2 has some DoS vulnerabilities when it parses an XML that has many specific characters such as whitespace character, `>]` and `]>`. The REXML gem 3.3.3 or later include the patches to fix these vulner…

  ruby rexml kube-fluentd-operator ruby2.3 Debian Ubuntu Alpine Wolfi RubyGems
  Aug 1, 2024
• Medium 5.3
  CVE-2024-41946

  REXML DoS vulnerability

  REXML is an XML toolkit for Ruby. The REXML gem 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API. The REXML gem 3.3.3 or later include the patch to fix the vulnerability.

  ruby rexml kube-fluentd-operator ruby2.3 Debian Ubuntu Azure Linux Alpine Wolfi RubyGems
  Aug 1, 2024
• Medium 4.3
  CVE-2024-39908 Public exploit

  Denial of service in REXML

  REXML is an XML toolkit for Ruby. The REXML gem before 3.3.1 has some DoS vulnerabilities when it parses an XML that has many specific characters such as `<`, `0` and `%>`. If you need to parse untrusted XMLs, you many be impacted to these vulnerabilities. Th…

  ruby rexml kube-fluentd-operator ruby2.3 Debian Ubuntu Azure Linux Alpine Wolfi RubyGems
  Jul 16, 2024
• Medium 4.0
  CVE-2025-27220

  CGI has Regular Expression Denial of Service (ReDoS) potential in Util#escapeElement

  In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method.

  ruby-lang CGI ruby2.3 ruby2.5 Debian Ubuntu Azure Linux Wolfi RubyGems
  Mar 3, 2025
• Low 3.2
  CVE-2025-27221

  URI allows for userinfo Leakage in URI#join, URI#merge, and URI#+

  In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an inadvertent leakage of authentication credentials because userinfo is retained even after changing the host.

  ruby-lang URI kube-fluentd-operator ruby2.3 Debian Ubuntu Azure Linux Wolfi RubyGems
  Mar 3, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2298243
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2302268
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2302272
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2307297
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2349696
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2349699
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2349700
• article
  https://issues.redhat.com/browse/RHEL-55408
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_4063.json
• report
  https://access.redhat.com/security/cve/CVE-2024-39908
• advisory
  https://www.cve.org/CVERecord?id=CVE-2024-39908
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2024-39908
• article
  https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
• article
  https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908
• report
  https://access.redhat.com/security/cve/CVE-2024-41123
• advisory
  https://www.cve.org/CVERecord?id=CVE-2024-41123
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2024-41123
• article
  https://github.com/ruby/rexml/security/advisories/GHSA-r55c-59qm-vjw6
• article
  https://github.com/ruby/rexml/security/advisories/GHSA-vg3r-rm7w-2xgh
• article
  https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41123
• report
  https://access.redhat.com/security/cve/CVE-2024-41946
• advisory
  https://www.cve.org/CVERecord?id=CVE-2024-41946
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2024-41946
• article
  https://github.com/ruby/rexml/commit/033d1909a8f259d5a7c53681bcaf14f13bcf0368
• article
  https://github.com/ruby/rexml/security/advisories/GHSA-5866-49gr-22v4
• article
  https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml
• article
  https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946
• report
  https://access.redhat.com/security/cve/CVE-2024-43398
• advisory
  https://www.cve.org/CVERecord?id=CVE-2024-43398
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2024-43398
• article
  https://github.com/ruby/rexml/releases/tag/v3.3.6
• article
  https://github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3
• report
  https://access.redhat.com/security/cve/CVE-2025-27219
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-27219
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-27219
• article
  https://www.ruby-lang.org/en/news/2025/02/26/security-advisories/
• report
  https://access.redhat.com/security/cve/CVE-2025-27220
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-27220