Query "Update Instruction Alone" false detection for multiple update/install commands

[malte-laukoetter]

Expected Behavior

Multiple apt-get update and apt-get install commands can be used in a single RUN instruction.

Actual Behavior

For the following two Dockerfiles the query "Update Instruction Alone" reports a problem. There is no update command that is not followed by an install command in these Dockerfiles.

FROM alpine

RUN if ! which gpg ; then \
      (apt-get update ;apt-get install --no-install-recommends gnupg=2.2.19 -y ) ; \
    fi ; \
    if ! gpg --version | grep -q '^gpg (GnuPG) 1\.' ; then \
      (apt-get update ;apt-get install --no-install-recommends dirmngr=2.2.19 -y ) ; \
    fi ; \
    rm -rf /var/lib/apt/lists/*

FROM node:19.7.0
RUN npm install sqlite3; apt-get update ;apt-get install --no-install-recommends g++;

Specifications

• Version: snapshot-34973e9d
• Platform: Docker
• Subsystem: Dockerfiles
• Query: 9bae49be-0aa3-4de5-bab2-4c3a069e40cd

[cxMiguelSilva]

Hi @Lergin, I hope you are doing Great!!
I am happy to tell you that there is already a PR to improve the checks for update and install keywords in this Security Query.