[Security] Bump loofah from 2.2.3 to 2.4.0

[dependabot-preview]

Bumps loofah from 2.2.3 to 2.4.0. This update includes a security fix.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

Loofah XSS Vulnerability
In the Loofah gem, through v2.3.0, unsanitized JavaScript may occur in
sanitized output when a crafted SVG element is republished.

Patched versions: >= 2.3.1
Unaffected versions: none

Release notes

Sourced from loofah's releases.

2.4.0 / 2019-11-25

Features

• Allow CSS property max-width #175 (Thanks, @​bchaney!)
• Allow CSS sizes expressed in rem [#176, #177]
• Add frozen_string_literal: true magic comment to all lib files. #118

2.3.1 / 2019-10-22

Security

Address CVE-2019-15587: Unsanitized JavaScript may occur in sanitized output when a crafted SVG element is republished.

This CVE's public notice is at flavorjones/loofah#171

2.3.0 / 2019-09-28

Features

• Expand set of allowed protocols to include tel: and line:. [#104, #147]
• Expand set of allowed CSS functions. [related to #122]
• Allow greater precision in shorthand CSS values. #149 (Thanks, @​danfstucky!)
• Allow CSS property list-style #162 (Thanks, @​jaredbeck!)
• Allow CSS keywords thick and thin #168 (Thanks, @​georgeclaghorn!)
• Allow HTML property contenteditable #167 (Thanks, @​andreynering!)

Bug fixes

• CSS hex values are no longer limited to lowercase hex. Previously uppercase hex were scrubbed. #165 (Thanks, @​asok!)

Deprecations / Name Changes

The following method and constants are hereby deprecated, and will be completely removed in a future release:

• Deprecate Loofah::Helpers::ActionView.white_list_sanitizer, please use Loofah::Helpers::ActionView.safe_list_sanitizer instead.
• Deprecate Loofah::Helpers::ActionView::WhiteListSanitizer, please use Loofah::Helpers::ActionView::SafeListSanitizer instead.
• Deprecate Loofah::HTML5::WhiteList, please use Loofah::HTML5::SafeList instead.

Thanks to @​JuanitoFatas for submitting these changes in #164 and for making the language used in Loofah more inclusive.

Changelog

Sourced from loofah's changelog.

2.4.0 / 2019-11-25

Features

• Allow CSS property max-width #175 (Thanks, @​bchaney!)
• Allow CSS sizes expressed in rem [#176, #177]
• Add frozen_string_literal: true magic comment to all lib files. #118

2.3.1 / 2019-10-22

Security

Address CVE-2019-15587: Unsanitized JavaScript may occur in sanitized output when a crafted SVG element is republished.

This CVE's public notice is at flavorjones/loofah#171

2.3.0 / 2019-09-28

Features

• Expand set of allowed protocols to include tel: and line:. [#104, #147]
• Expand set of allowed CSS functions. [related to #122]
• Allow greater precision in shorthand CSS values. #149 (Thanks, @​danfstucky!)
• Allow CSS property list-style #162 (Thanks, @​jaredbeck!)
• Allow CSS keywords thick and thin #168 (Thanks, @​georgeclaghorn!)
• Allow HTML property contenteditable #167 (Thanks, @​andreynering!)

Bug fixes

• CSS hex values are no longer limited to lowercase hex. Previously uppercase hex were scrubbed. #165 (Thanks, @​asok!)

Deprecations / Name Changes

The following method and constants are hereby deprecated, and will be completely removed in a future release:

• Deprecate Loofah::Helpers::ActionView.white_list_sanitizer, please use Loofah::Helpers::ActionView.safe_list_sanitizer instead.
• Deprecate Loofah::Helpers::ActionView::WhiteListSanitizer, please use Loofah::Helpers::ActionView::SafeListSanitizer instead.
• Deprecate Loofah::HTML5::WhiteList, please use Loofah::HTML5::SafeList instead.

Thanks to @​JuanitoFatas for submitting these changes in #164 and for making the language used in Loofah more inclusive.

Commits

• 724ac1c version bump to v2.4.0
• e808fb6 ci: don't turn on frozen strings until after bundle install
• 0eb9976 update CHANGELOG
• 0783f5b add magic comment for frozen string literals to all files
• 5ce3a71 add rubocop as dev dep and configure security and frozen string cops
• 82ae384 test suite should check compatibility with frozen string literals
• 8747065 Merge pull request #175 from bchaney/allow-css-max-width
• 2767ae3 Merge pull request #177 from flavorjones/176-allow-rem-css-sizes
• 13f734f css sanitizer allows "rem" sizes
• 2699b61 Allow CSS property: max-width
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

[dependabot-preview]

Superseded by #58.