[Snyk] Security upgrade alpine from 3.14.2 to 3.19.6

[ekmixon]

Snyk has created this PR to fix 5 vulnerabilities in the dockerfile dependencies of this project.

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

Snyk changed the following file(s):

• Dockerfile

We recommend upgrading to alpine:3.19.6, as this image has only 1 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Out-of-bounds Write SNYK-ALPINE314-ZLIB-2976174	714
	Loop with Unreachable Exit Condition ('Infinite Loop') SNYK-ALPINE314-OPENSSL-2426333	614
	Use After Free SNYK-ALPINE314-OPENSSL-3314637	614
	Double Free SNYK-ALPINE314-OPENSSL-3314653	614
	Improper Certificate Validation SNYK-ALPINE314-OPENSSL-3368739	614

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Double Free
🦉 Use After Free

Summary by Sourcery

Upgrade the Alpine base image from 3.14.2 to 3.19.6 to patch security vulnerabilities.

Bug Fixes:

• Upgrade the Alpine base image to version 3.19.6, addressing multiple high-severity vulnerabilities including out-of-bounds write, infinite loop, use-after-free, double-free, and improper certificate validation issues in OpenSSL and zlib.

Build:

• Update the Dockerfile to use Alpine 3.19.6 as the base image.

[secure-code-warrior-for-github]

Micro-Learning Topic: Double free (Detected by phrase)

Matched on "Double Free"

What is this? (2min video)

Double free errors occur when free() is called more than once with the same memory address as an argument.

Try a challenge in Secure Code Warrior

Micro-Learning Topic: Use-after-free (Detected by phrase)

Matched on "Use After Free"

What is this? (2min video)

Dereferencing pointers to objects that have already been freed opens the door to execution of arbitrary code. Attackers may be able to insert instructions at the freed memory location in order to trigger the exploit when the pointer is used after the memory has been freed.

Try a challenge in Secure Code Warrior

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request upgrades the base Docker image from alpine:3.14.2 to alpine:3.19.6 in the Dockerfile. This change addresses multiple security vulnerabilities present in the older version of the Alpine image.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
The base Docker image for the final stage has been updated to address security vulnerabilities.	The base image was updated from alpine:3.14.2 to alpine:3.19.6.	Dockerfile

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[sourcery-ai]

We have skipped reviewing this pull request. Here's why:

• It seems to have been created by a bot ('[Snyk]' found in title). We assume it knows what it's doing!
• We don't review packaging changes - Let us know if you'd like us to change this.