bug(docker): oom when scanning a dockerfile with multi-line commands and comments

[saars-orca]

Hey,
When scanning a Dockerfile with multi-line RUN commands that contain comments, the scan hangs until the process eventually runs out of memory.

Expected Behavior

KICS should scan the Dockerfile without hanging or running out of memory.

Actual Behavior

debug.log
KICS stops printing trace logs after a few seconds and hangs, leading to the container running out of memory and crashing.

Steps to Reproduce the Problem

1. Download "Dockerfile.txt" and rename it to "Dockerfile"
   Dockerfile.txt
2. Run KICS: docker run -m 2G -it -v $PWD:/path checkmarx/kics:latest scan --path "/path/" --ci --log-level TRACE
   (the docker image is used to avoid running out of host memory)
3. wait for the container to run out of memory and crash

Specifications

• Version: v2.1.2
• Platform: Linux AMD64/MacOS ARM64
• Subsystem: Docker

[cx-monicac]

Hi @saars-orca

Thank you for bringing this bug to our attention we opened an internal bug and will work on it as soon as possible.