[Security] Bump activesupport from 4.1.9 to 4.1.16

[dependabot-preview[bot]]

Bumps activesupport from 4.1.9 to 4.1.16. This update includes security fixes.

Vulnerabilities fixed

*Sourced from The GitHub Vulnerability Alert Database.* > **CVE-2015-3226** > See https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3226. > > Affected versions: >= 4.1.0, < 4.1.11 *Sourced from The GitHub Vulnerability Alert Database.* > **CVE-2015-3227** > See https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3227. > > Affected versions: < 4.1.11 *Sourced from [The Ruby Advisory Database](https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2015-3226.yml).* > **XSS Vulnerability in ActiveSupport::JSON.encode** > When a `Hash` containing user-controlled data is encode as JSON (either through > `Hash#to_json` or `ActiveSupport::JSON.encode`), Rails does not perform adequate > escaping that matches the guarantee implied by the `escape_html_entities_in_json` > option (which is enabled by default). If this resulting JSON string is subsequently > inserted directly into an HTML page, the page will be vulnerable to XSS attacks. > > For example, the following code snippet is vulnerable to this attack: > > <%= javascript_tag "var data = #{user_supplied_data.to_json};" %> > > Similarly, the following is also vulnerable: > > > > All applications that renders JSON-encoded strings that contains user-controlled > data in their views should either upgrade to one of the FIXED versions or use > the suggested workaround immediately. > > ... (truncated) > > Patched versions: >= 4.2.2; \~> 4.1.11 > Unaffected versions: < 4.1.0 *Sourced from [The Ruby Advisory Database](https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2015-3227.yml).* > **Possible Denial of Service attack in Active Support** > Specially crafted XML documents can cause applications to raise a > `SystemStackError` and potentially cause a denial of service attack. This > only impacts applications using REXML or JDOM as their XML processor. Other > XML processors that Rails supports are not impacted. > > All users running an affected release should either upgrade or use one of the work arounds immediately. > > Workarounds > ----------- > Use an XML parser that is not impacted by this problem, such as Nokogiri or > LibXML. You can change the processor like this: > > ActiveSupport::XmlMini.backend = 'Nokogiri' > > If you cannot change XML parsers, then adjust > `RUBY_THREAD_MACHINE_STACK_SIZE`. > > Patched versions: >= 4.2.2; \~> 4.1.11; \~> 3.2.22 > Unaffected versions: none

Commits

- See full diff in [compare view](https://github.com/rails/rails/commits/v4.1.16)

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Superseded by #22.