🚨 [security] [website] Update rack: 2.0.8 → 2.1.3 (minor)

[depfu]

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🚨 Your version of rack has known security vulnerabilities 🚨

Advisory: CVE-2020-8161
Disclosed: May 12, 2020
URL: https://groups.google.com/forum/#!topic/ruby-security-ann/T4ZIsfRf2eA

Directory traversal in Rack::Directory app bundled with Rack

There was a possible directory traversal vulnerability in the Rack::Directory app
that is bundled with Rack.

Versions Affected: rack < 2.2.0
Not affected: Applications that do not use Rack::Directory.
Fixed Versions: 2.1.3, >= 2.2.0

Impact

If certain directories exist in a director that is managed by
Rack::Directory, an attacker could, using this vulnerability, read the
contents of files on the server that were outside of the root specified in the
Rack::Directory initializer.

Workarounds

Until such time as the patch is applied or their Rack version is upgraded,
we recommend that developers do not use Rack::Directory in their
applications.

🚨 We recommend to merge and deploy this update as soon as possible! 🚨

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

↗️ rack (indirect, 2.0.8 → 2.1.3) · Repo · Changelog

Release Notes

2.1.2 (from changelog)

• Fix multipart parser for some files to prevent denial of service (@aiomaster)
• Fix Rack::Builder#use with keyword arguments (@kamipo)
• Skip deflating in Rack::Deflater if Content-Length is 0 (@jeremyevans)
• Remove SessionHash#transform_keys, no longer needed (@pavel)
• Add to_hash to wrap Hash and Session classes (@oleh-demyanyuk)
• Handle case where session id key is requested but missing (@jeremyevans)

2.1.1 (from changelog)

• Remove Rack::Chunked from Rack::Server default middleware. (#1475, @ioquatix)
• Restore support for code relying on SessionId#to_s. (@jeremyevans)

2.1.0 (from changelog)

Added

• Add support for SameSite=None cookie value. (@hennikul)
• Add trailer headers. (@eileencodes)
• Add MIME Types for video streaming. (@styd)
• Add MIME Type for WASM. (@buildrtech)
• Add Early Hints(103) to status codes. (@egtra)
• Add Too Early(425) to status codes. (@y-yagi)
• Add Bandwidth Limit Exceeded(509) to status codes. (@CJKinni)
• Add method for custom ip_filter. (@svcastaneda)
• Add boot-time profiling capabilities to rackup. (@tenderlove)
• Add multi mapping support for X-Accel-Mappings header. (@yoshuki)
• Add sync: false option to Rack::Deflater. (Eric Wong)
• Add Builder#freeze_app to freeze application and all middleware instances. (@jeremyevans)
• Add API to extract cookies from Rack::MockResponse. (@petercline)

Changed

• Don't propagate nil values from middleware. (@ioquatix)
• Lazily initialize the response body and only buffer it if required. (@ioquatix)
• Fix deflater zlib buffer errors on empty body part. (@felixbuenemann)
• Set X-Accel-Redirect to percent-encoded path. (@diskkid)
• Remove unnecessary buffer growing when parsing multipart. (@tainoe)
• Expand the root path in Rack::Static upon initialization. (@rosenfeld)
• Make ShowExceptions work with binary data. (@axyjo)
• Use buffer string when parsing multipart requests. (@janko-m)
• Support optional UTF-8 Byte Order Mark (BOM) in config.ru. (@mikegee)
• Handle X-Forwarded-For with optional port. (@dpritchett)
• Use Time#httpdate format for Expires, as proposed by RFC 7231. (@nanaya)
• Make Utils.status_code raise an error when the status symbol is invalid instead of 500. (@adambutler)
• Rename Request::SCHEME_WHITELIST to Request::ALLOWED_SCHEMES.
• Make Multipart::Parser.get_filename accept files with + in their name. (@lucaskanashiro)
• Add Falcon to the default handler fallbacks. (@ioquatix)
• Update codebase to avoid string mutations in preparation for frozen_string_literals. (@pat)
• Change MockRequest#env_for to rely on the input optionally responding to #size instead of #length. (@janko)
• Rename Rack::File -> Rack::Files and add deprecation notice. (@postmodern).
• Prefer Base64 “strict encoding” for Base64 cookies. (@ioquatix)

Removed

• Remove to_ary from Response (@tenderlove)
• Deprecate Rack::Session::Memcache in favor of Rack::Session::Dalli from dalli gem (@fatkodima)

Fixed

• Eliminate warnings for Ruby 2.7. (@osamtimizer)

Documentation

• Update broken example in Session::Abstract::ID documentation. (tonytonyjan)
• Add Padrino to the list of frameworks implmenting Rack. (@wikimatze)
• Remove Mongrel from the suggested server options in the help output. (@tricknotes)
• Replace HISTORY.md and NEWS.md with CHANGELOG.md. (@twitnithegirl)
• CHANGELOG updates. (@drenmi, @p8)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

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Closed in favor of #57.