phpMyAdmin is a web-based management tool for MySQL databases.
PhpMyAdmin was vulnerable to an SQL injection attack through the designer feature.
An authenticated remote attacker, by specifying a specially crafted database/table name, could trigger an SQL injection attack.
There is no known workaround at this time.
All phpMyAdmin users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/phpmyadmin-4.9.2"