Linuxconf is running (Linuxconf is a sophisticated administration tool for Linux) and is granting network access at least to the host openvasd is running onto. LinuxConf is suspected to contain various buffer overflows, so you should not let allow networking access to anyone.

Disable Linuxconf access from the network by using a firewall, if you do not need Linuxconf use the Linuxconf utility (command line or XWindows based version) to disable it. See additional information regarding the dangers of keeping this port open at : http://www.securiteam.com/exploits/Linuxconf_contains_remotely_exploitable_buffer_overflow.html