man-db before 2.8.5 on Gentoo allows local users (with access to the man user account) to gain root privileges because /usr/bin/mandb is executed by root but not owned by root. (Also, the owner can strip the setuid and setgid bits.) CREATE(Triage):(User=admin) CVE-2018-25078 (https://nvd.nist.gov/vuln/detail/CVE-2018-25078)
