FROM ubuntu:20.04 ENV DEBIAN_FRONTEND=noninteractive RUN apt-get update && \ apt-get install -y --no-install-recommends \ wget \ make \ gcc \ libaudit-dev \ libselinux1-dev \ libpam0g-dev \ zlib1g-dev && \ wget https://github.com/CryingN/CVE-2025-32462/releases/download/sudo/sudo-1.9.5p2.tar.gz && \ tar xzf sudo-1.9.5p2.tar.gz && \ cd sudo-1.9.5p2 && \ ./configure && \ make && \ make install && \ cd .. && \ rm -rf sudo-1.9.5p2* && \ apt-get remove -y wget make gcc && \ apt-get autoremove -y && \ rm -rf /var/lib/apt/lists/* RUN mkdir -p /etc/sudoers.d && \ chmod 750 /etc/sudoers.d RUN echo "ubuntu ci.test.local = NOPASSWD:ALL" > /etc/sudoers.d/custom && \ chmod 440 /etc/sudoers.d/custom RUN sudo --version | head -1 RUN useradd -m ubuntu && \ usermod -aG sudo ubuntu USER ubuntu WORKDIR /home/ubuntu CMD ["/bin/bash"]