[Security] Bump nokogiri from 1.8.2 to 1.9.1

[dependabot-preview]

Bumps nokogiri from 1.8.2 to 1.9.1. This update includes security fixes.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

Nokogiri gem, via libxml2, is affected by multiple vulnerabilities
Nokogiri 1.8.5 has been released.

This is a security and bugfix release. It addresses two CVEs in upstream
libxml2 rated as "medium" by Red Hat, for which details are below.

If you're using your distro's system libraries, rather than Nokogiri's
vendored libraries, there's no security need to upgrade at this time,
though you may want to check with your distro whether they've patched this
(Canonical has patched Ubuntu packages). Note that these patches are not
yet (as of 2018-10-04) in an upstream release of libxml2.

Full details about the security update are available in Github Issue #1785.
[#1785]: https://github-redirect.dependabot.com/sparklemotion/nokogiri/issues/1785

---

[MRI] Pulled in upstream patches from libxml2 that address CVE-2018-14404
and CVE-2018-14567. Full details are available in #1785. Note that these
patches are not yet (as of 2018-10-04) in an upstream release of libxml2.

... (truncated)

Patched versions: >= 1.8.5
Unaffected versions: none

Sourced from The Ruby Advisory Database.

Revert libxml2 behavior in Nokogiri gem that could cause XSS
[MRI] Behavior in libxml2 has been reverted which caused
CVE-2018-8048 (loofah gem), CVE-2018-3740 (sanitize gem), and
CVE-2018-3741 (rails-html-sanitizer gem). The commit in question is
here:

GNOME/libxml2@960f0e2

and more information is available about this commit and its impact
here:

https://github-redirect.dependabot.com/flavorjones/loofah/issues/144

This release simply reverts the libxml2 commit in question to protect
users of Nokogiri's vendored libraries from similar vulnerabilities.

If you're offended by what happened here, I'd kindly ask that you
comment on the upstream bug report here:

https://bugzilla.gnome.org/show_bug.cgi?id=769760

Patched versions: >= 1.8.3
Unaffected versions: none

Release notes

Sourced from nokogiri's releases.

1.9.1 / 2018-12-17

Bug fixes

• Fix a bug introduced in v1.9.0 where XML::DocumentFragment#dup no longer returned an instance of the callee's class, instead always returning an XML::DocumentFragment. This notably broke any subclass of XML::DocumentFragment including HTML::DocumentFragment as well as the Loofah gem's Loofah::HTML::DocumentFragment. [#1846]

1.9.0 / 2018-12-17

Security Notes

• [JRuby] Upgrade Xerces dependency from 2.11.0 to 2.12.0 to address upstream vulnerability CVE-2012-0881 [#1831] (Thanks grajagandev for reporting.)

Notable non-functional changes

• Decrease installation size by removing many unneeded files (e.g., /test) from the packaged gems. [#1719] (Thanks, stevecrozz!)

Features

• XML::Attr#value= allows HTML node attribute values to be set to either a blank string or an empty boolean attribute. [#1800]
• Introduce XML::Node#wrap which does what XML::NodeSet#wrap has always done, but for a single node. [#1531] (Thanks, ethirajsrinivasan!)
• [MRI] Improve installation experience on macOS High Sierra (Darwin). [#1812, #1813] (Thanks, gpakosz and nurse!)
• [MRI] Node#dup supports copying a node directly to a new document. See the method documentation for details.
• [MRI] DocumentFragment#dup is now more memory-efficient, avoiding making unnecessary copies. [#1063]
• [JRuby] NodeSet has been rewritten to improve performance! [#1795]

Bug fixes

• NodeSet#each now returns self instead of zero. [#1822] (Thanks, olehif!)
• [MRI] Address a memory leak when using XML::Builder to create nodes with namespaces. [#1810]
• [MRI] Address a memory leak when unparenting a DTD. [#1784] (Thanks, stevecheckoway!)
• [MRI] Use RbConfig::CONFIG instead of ::MAKEFILE_CONFIG to fix installations that use Makefile macros. [#1820] (Thanks, nobu!)
• [JRuby] Decrease large memory usage when making nested XPath queries. [#1749]
• [JRuby] Fix failing tests on JRuby 9.2.x
• [JRuby] Fix default namespaces in nodes reparented into a different document [#1774]
• [JRuby] Fix support for Java 9. [#1759] (Thanks, Taywee!)

Dependencies

• [MRI] Upgrade mini_portile2 dependency from ~> 2.3.0 to ~> 2.4.0

1.9.0.rc1 / 2018-12-10

... (truncated)

Changelog

Sourced from nokogiri's changelog.

1.9.1 / 2018-12-17

Bug fixes

• Fix a bug introduced in v1.9.0 where XML::DocumentFragment#dup no longer returned an instance of the callee's class, instead always returning an XML::DocumentFragment. This notably broke any subclass of XML::DocumentFragment including HTML::DocumentFragment as well as the Loofah gem's Loofah::HTML::DocumentFragment. [#1846]

1.9.0 / 2018-12-17

Security Notes

• [JRuby] Upgrade Xerces dependency from 2.11.0 to 2.12.0 to address upstream vulnerability CVE-2012-0881 [#1831] (Thanks grajagandev for reporting.)

Notable non-functional changes

• Decrease installation size by removing many unneeded files (e.g., /test) from the packaged gems. [#1719] (Thanks, stevecrozz!)

Features

• XML::Attr#value= allows HTML node attribute values to be set to either a blank string or an empty boolean attribute. [#1800]
• Introduce XML::Node#wrap which does what XML::NodeSet#wrap has always done, but for a single node. [#1531] (Thanks, ethirajsrinivasan!)
• [MRI] Improve installation experience on macOS High Sierra (Darwin). [#1812, #1813] (Thanks, gpakosz and nurse!)
• [MRI] Node#dup supports copying a node directly to a new document. See the method documentation for details.
• [MRI] DocumentFragment#dup is now more memory-efficient, avoiding making unnecessary copies. [#1063]
• [JRuby] NodeSet has been rewritten to improve performance! [#1795]

Bug fixes

• NodeSet#each now returns self instead of zero. [#1822] (Thanks, olehif!)
• [MRI] Address a memory leak when using XML::Builder to create nodes with namespaces. [#1810]
• [MRI] Address a memory leak when unparenting a DTD. [#1784] (Thanks, stevecheckoway!)
• [MRI] Use RbConfig::CONFIG instead of ::MAKEFILE_CONFIG to fix installations that use Makefile macros. [#1820] (Thanks, nobu!)
• [JRuby] Decrease large memory usage when making nested XPath queries. [#1749]
• [JRuby] Fix failing tests on JRuby 9.2.x
• [JRuby] Fix default namespaces in nodes reparented into a different document [#1774]
• [JRuby] Fix support for Java 9. [#1759] (Thanks, Taywee!)

Dependencies

• [MRI] Upgrade mini_portile2 dependency from ~> 2.3.0 to ~> 2.4.0

1.8.5 / 2018-10-04

Security Notes

... (truncated)

Commits

• db26a04 limit test of libxml-specific DocumentFragment#dup behavior
• 2e15c88 version bump to v1.9.1
• e9ac292 Fix XML::DocumentFragment to return an instance of callee's class
• ab40787 correct CHANGELOG
• fff550c version bump to v1.9.0
• 8d9a65b Merge branch '1719-stevecrozz-decrease-gem-size'
• dd19ddd update CHANGELOG
• 985b9fc add .hoerc containing excludes
• b61b34c Make builds minimal
• 9bb0226 remove hacks preventing jruby from using racc and rexical
• Additional commits viewable in compare view

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Superseded by #191.