[Snyk] Security upgrade node from 14.1.0 to 14.19.1

[chcarney]

This PR was automatically created by Snyk using the credentials of a real user.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• Dockerfile

We recommend upgrading to node:14.19.1, as this image has only 580 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	786	OS Command Injection SNYK-DEBIAN9-OPENSSL-2807589	No Known Exploit
	714	Buffer Overflow SNYK-DEBIAN9-PYTHON35-1063181	No Known Exploit
	714	CVE-2019-9636 SNYK-DEBIAN9-PYTHON35-340072	No Known Exploit
	714	Directory Traversal SNYK-DEBIAN9-PYTHON35-453739	No Known Exploit
	714	Credentials Management SNYK-DEBIAN9-PYTHON35-584435	No Known Exploit

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🦉 Directory Traversal

[secure-code-warrior-for-github]

Micro-Learning Topic: OS command injection (Detected by phrase)

Matched on "OS Command Injection"

What is this? (2min video)

In many situations, applications will rely on OS provided functions, scripts, macros and utilities instead of reimplementing them in code. While functions would typically be accessed through a native interface library, the remaining three OS provided features will normally be invoked via the command line or launched as a process. If unsafe inputs are used to construct commands or arguments, it may allow arbitrary OS operations to be performed that can compromise the server.

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Micro-Learning Topic: Directory traversal (Detected by phrase)

Matched on "Directory Traversal"

What is this? (2min video)

Path traversal vulnerabilities occur when inputs that have not been sufficiently validated or sanitised are used to build directory or file paths. If an attacker can influence the path being accessed by the server, they may be able to gain unauthorised access to files or even execute arbitrary code on the server (when coupled with file upload functionality).

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Micro-Learning Topic: Buffer overflow (Detected by phrase)

Matched on "Buffer Overflow"

What is this? (2min video)

A buffer overflow condition exists when a program attempts to put more data in a buffer than it can hold or when a program attempts to put data in a memory area past a buffer.

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