multi-gnome-terminal is an enhanced terminal emulator that is derived from gnome-terminal.
multi-gnome-terminal contains debugging code that has been known to output active keystrokes to a potentially unsafe location. Output has been seen to show up in the '.xsession-errors' file in the users home directory. Since this file is world-readable on many machines, this bug has the potential to leak sensitive information to anyone using the system.
Any authorized user on the local machine has the ability to read any critical data that has been entered into the terminal, including passwords.
There is no known workaround at this time.
All multi-gnome-terminal users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=x11-terms/multi-gnome-terminal-1.6.2-r1"
# emerge ">=x11-terms/multi-gnome-terminal-1.6.2-r1"