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Guide to the Secure Configuration of Ubuntu 18.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Specify the hash to use when signing modules

    This configures the kernel to build and sign modules using <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_kernel_config_module_sig_ha...
    Rule Medium Severity
  • Specify module signing key to use

    Setting this option to something other than its default of <code>certs/signing_key.pem</code> will disable the autogeneration of signing keys and a...
    Rule Medium Severity
  • Sign kernel modules with SHA-512

    This configures the kernel to build and sign modules using SHA512 as the hash function. The configuration that was used to build kernel is availab...
    Rule Medium Severity
  • Enable poison without sanity check

    Skip the sanity checking on alloc, only fill the pages with poison on free. This reduces some of the overhead of the poisoning feature. This config...
    Rule Medium Severity
  • Use zero for poisoning instead of debugging value

    Instead of using the existing poison value, fill the pages with zeros. This makes it harder to detect when errors are occurring due to sanitization...
    Rule Medium Severity

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