etc/initsystem/prepare-dirs in Icinga 2.x through 2.8.1 has a chown call for a filename in a user-writable directory, which allows local users to gain privileges by leveraging access to the $ICINGA2_USER account for creation of a link.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-16933.json"