Ampache is a PHP based tool for managing, updating and playing audio files via a web interface.
Dmitry E. Oboukhov reported an insecure temporary file usage within the gather-messages.sh script.
A local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application.
There is no known workaround at this time.
All Ampache users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apps/ampache-3.4.3"