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XCCDF
Guide to the Secure Configuration of Ubuntu 22.04
System Settings
Kernel Configuration
Sign kernel modules with SHA-512
Sign kernel modules with SHA-512
An XCCDF Rule
Details
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Sign kernel modules with SHA-512
Medium Severity
This configures the kernel to build and sign modules using SHA512 as the hash function. The configuration that was used to build kernel is available at
/boot/config-*
. To check the configuration value for
CONFIG_MODULE_SIG_SHA512
, run the following command:
grep CONFIG_MODULE_SIG_SHA512 /boot/config-*
For each kernel installed, a line with value "y" should be returned.