[Security] Bump deep-extend from 0.4.1 to 0.5.1

[dependabot-preview]

Bumps deep-extend from 0.4.1 to 0.5.1. This update includes security fixes.

Vulnerabilities fixed

Sourced from The Sonatype OSS Index.

CWE-471: Modification of Assumed-Immutable Data (MAID)
The software does not properly protect an assumed-immutable element from being modified by an attacker.

Affected versions: <=0.5.0

Sourced from The GitHub Security Advisory Database.

High severity vulnerability that affects deep-extend
The utilities function in all versions <= 0.5.0 of the deep-extend node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.

Affected versions: < 0.5.1

Sourced from The Node Security Working Group.

deep-extend prototype pollution
deep-extend node module suffers from a prototype pollution vulnerability

Affected versions: <=0.5.0

Sourced from The Node Security Working Group.

deep-extend prototype pollution
deep-extend node module suffers from a prototype pollution vulnerability

Affected versions: <=0.5.0

Sourced from The Node Security Working Group.

deep-extend prototype pollution
deep-extend node module suffers from a prototype pollution vulnerability

Affected versions: <=0.5.0

Changelog

Sourced from deep-extend's changelog.

v0.5.1

• Fix prototype pollution vulnerability (thanks to mwakerman for the PR)
• Avoid using deprecated Buffer API (thanks to ChALkeR for the PR)

v0.5.0

• Auto-testing provided by Travis CI;
• Support older Node.JS versions (v0.11.x and v0.10.x);
• Removed tests files from npm package.

v0.4.2

• Fix for null as an argument.

Commits

• 2e0110e prepared v0.5.1 release
• 433ee51 Avoid using deprecated Buffer API
• 9d71360 .editorconfig: added max-line-length
• 715555b Merge branch 'pr-40' into dev
• 9423fae Prevent Object prototype pollution.
• ffe04c3 added test for issue #33
• 9653940 updated yarn.lock
• adb9c49 0.5.0
• 7ef4965 updated CHANGELOG.md
• 6b5860e removed tests files for npm package files
• Additional commits viewable in compare view

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[codecov]

Codecov Report

Merging #354 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #354   +/-   ##
=======================================
  Coverage   91.64%   91.64%           
=======================================
  Files          42       42           
  Lines        1914     1914           
  Branches      217      217           
=======================================
  Hits         1754     1754           
  Misses        155      155           
  Partials        5        5