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XCCDF
Guide to the Secure Configuration of Red Hat Enterprise Linux 9
System Settings
Kernel Configuration
Harden common str/mem functions against buffer overflows
Harden common str/mem functions against buffer overflows
An XCCDF Rule
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Harden common str/mem functions against buffer overflows
Medium Severity
Detect overflows of buffers in common string and memory functions where the compiler can determine and validate the buffer sizes. This configuration is available from kernel 4.13, but may be available if backported by distros. The configuration that was used to build kernel is available at
/boot/config-*
. To check the configuration value for
CONFIG_FORTIFY_SOURCE
, run the following command:
grep CONFIG_FORTIFY_SOURCE /boot/config-*
For each kernel installed, a line with value "y" should be returned.