Ensure address space layout randomization

src/freedombone-utils-firewall

@@ -290,6 +290,11 @@ function configure_internet_protocol {
         sed -i "s|#net.ipv4.conf.default.accept_redirects.*|net.ipv4.conf.default.accept_redirects = 0|g" /etc/sysctl.conf
         sed -i "s|net.ipv4.conf.default.accept_redirects.*|net.ipv4.conf.default.accept_redirects = 0|g" /etc/sysctl.conf
     fi
+    if ! grep -q "kernel.randomize_va_space" /etc/sysctl.conf; then
+        echo "kernel.randomize_va_space=2" >> /etc/sysctl.conf
+    else
+        sed -i 's|kernel.randomize_va_space.*|kernel.randomize_va_space=2|g' /etc/sysctl.conf
+    fi
     mark_completed $FUNCNAME
 }