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Disable the selinuxuser_execstack SELinux Boolean

An XCCDF Rule

Description

By default, the SELinux boolean selinuxuser_execstack is enabled. This setting should be disabled as unconfined executables should not be able to make their stack executable. To disable the selinuxuser_execstack SELinux boolean, run the following command:

$ sudo setsebool -P selinuxuser_execstack off

Rationale

Disabling code execution from the stack blocks buffer overflow attacks.

ID
xccdf_org.ssgproject.content_rule_sebool_selinuxuser_execstack
Severity
Medium
References
Updated