tasks/main.yaml: This file defines the core tasks of the playbook.

• It gathers package facts using package_facts.
• It checks the extracted base version using a debug module.
• It conditionally installs a safe version (safe_version) using package if the system has a vulnerable version.

    ---
    - name: Gather package facts
      ansible.builtin.package_facts:
        manager: auto
      register: package_facts

    - name: Print the current version of {{ package_name }}
      ansible.builtin.debug:
        var: package_facts.ansible_facts.packages['{{ package_name }}'][0].version.split('-')[0]
      register: version_check

    - name: Install safe version of {{ package_name }}
      ansible.builtin.package:
        name: '{{ package_name }}={{ safe_version }}'
        state: present
      when: version_check=={{non_safe_version1}} or version_check=={{non_safe_version2}}

defaults/main.yaml: This file defines default variables used throughout the playbook.

• package_name: Name of the package to be patched (set to xz-utils).
• non_safe_version1: First vulnerable version (set to 5.6.0).
• non_safe_version2: Second vulnerable version (set to 5.6.1).
• safe_version: Known-safe version to install (set to 5.4.6).

    ---
    package_name: xz-utils
    non_safe_version1: 5.6.0
    non_safe_version2: 5.6.1
    safe_version: 5.4.6

playbook.yaml: This file defines the overall execution flow.

• It targets a host group named machines.
• It includes the xz-utils_checkout role, which likely contains tasks specific to handling the xz-utils package update (not provided here).

    ---
    - name: patch xz-utils
      hosts: machines
      roles:
        - xz_utils_patch