GTetrinet is a networked Tetris clone for GNOME 2.
Michael Gehring has found that GTetrinet fails to properly handle array indexes.
An attacker can potentially execute arbitrary code by sending a negative number of players to the server.
There is no known workaround at this time.
All GTetrinet users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=games-puzzle/gtetrinet-0.7.10"