Published: 11 September 2017
Nagios Core through 4.3.4 initially executes /usr/sbin/nagios as root but supports configuration options in which this file is owned by a non-root account (and similarly can have nagios.cfg owned by a non-root account), which allows local users to gain privileges by leveraging access to this non-root account.
this issue doesn't apply to the Debian/Ubuntu package. The binary and config file both have appropriate permissions.
CVSS 3 base score: 7.8