FROM ubuntu:jammy-20230816 RUN apt-get update && apt-get install -y gcc python3 RUN useradd -m user USER user WORKDIR /home/user COPY --chown=user ./patch.py /home/user/patch.py COPY --chown=user ./poc.c /home/user/poc.c RUN python3 patch.py RUN gcc poc.c -o poc FROM ubuntu:jammy-20230816 RUN useradd -m user USER user WORKDIR /home/user COPY --chown=user --from=0 /home/user/poc /home/user/poc COPY --chown=user --from=0 /home/user/'"'/libc.so.6 /home/user/'"'/libc.so.6 CMD ["/bin/bash"]