[Security] Bump json from 2.1.0 to 2.5.1

[dependabot-preview]

Bumps json from 2.1.0 to 2.5.1. This update includes a security fix.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

json Gem for Ruby Unsafe Object Creation Vulnerability (additional fix) There is an unsafe object creation vulnerability in the json gem bundled with Ruby. This vulnerability has been assigned the CVE identifier CVE-2020-10663. We strongly recommend upgrading the json gem.

Details

When parsing certain JSON documents, the json gem (including the one bundled with Ruby) can be coerced into creating arbitrary objects in the target system.

This is the same issue as CVE-2013-0269. The previous fix was incomplete, which addressed JSON.parse(user_input), but didn’t address some other styles of JSON parsing including JSON(user_input) and JSON.parse(user_input, nil).

See CVE-2013-0269 in detail. Note that the issue was exploitable to cause a Denial of Service by creating many garbage-uncollectable Symbol objects, but this kind of attack is no longer valid because Symbol objects are now garbage-collectable. However, creating arbitrary objects may cause severe security consequences depending upon the application code.

Patched versions: >= 2.3.0 Unaffected versions: none

Changelog

Sourced from json's changelog.

2020-12-22 (2.5.1)

• Restore the compatibility for constants of JSON class.

2020-12-22 (2.5.0)

• Ready to Ractor-safe at Ruby 3.0.

2020-12-17 (2.4.1)

• Restore version.rb with 2.4.1

2020-12-15 (2.4.0)

• Implement a freeze: parser option #447
• Fix an issue with generate_pretty and empty objects in the Ruby and Java implementations #449
• Fix JSON.load_file doc #448
• Fix pure parser with unclosed arrays / objects #425
• bundle the LICENSE file in the gem #444
• Add an option to escape forward slash character #405
• RDoc for JSON #439 #446 #442 #434 #433 #430

2020-06-30 (2.3.1)

• Spelling and grammar fixes for comments. Pull request #191 by Josh Kline.
• Enhance generic JSON and #generate docs. Pull request #347 by Victor Shepelev.
• Add :nodoc: for GeneratorMethods. Pull request #349 by Victor Shepelev.
• Baseline changes to help (JRuby) development. Pull request #371 by Karol Bucek.
• Add metadata for rubygems.org. Pull request #379 by Alexandre ZANNI.
• Remove invalid JSON.generate description from JSON module rdoc. Pull request #384 by Jeremy Evans.
• Test with TruffleRuby in CI. Pull request #402 by Benoit Daloze.
• Rdoc enhancements. Pull request #413 by Burdette Lamar.
• Fixtures/ are not being tested... Pull request #416 by Marc-André Lafortune.
• Use frozen string for hash key. Pull request #420 by Marc-André Lafortune.
• Added :call-seq: to RDoc for some methods. Pull request #422 by Burdette Lamar.
• Small typo fix. Pull request #423 by Marc-André Lafortune.

2019-12-11 (2.3.0)

• Fix default of create_additions to always be false for JSON(user_input) and JSON.parse(user_input, nil). Note that JSON.load remains with default true and is meant for internal serialization of trusted data. [CVE-2020-10663]
• Fix passing args all #to_json in json/add/*.

Commits

• 9dc86f9 Bump version to 2.5.1
• 91f5fdf Merge pull request #459 from flori/backword-compatible
• 5910bef Added backword compatible for < json-2.5
• ea58503 Bump version to 2.5.0
• 9e73da3 Merge pull request #457 from flori/prepare-3.0
• 0c446fa Workaround for JRuby
• 951c7d1 Drop to tests with too old Ruby
• d1a341f Skip tests with JRuby platform
• dece237 Guard for Ruby 3.0
• 147cbfa Use 2.7 in Travis
• Additional commits viewable in compare view

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