EnergyMech is an IRC bot programmed in C.
A bug in EnergyMech fails to handle empty CTCP NOTICEs correctly, and will cause a crash from a segmentation fault.
By sending an empty CTCP NOTICE, a remote attacker could exploit this vulnerability to cause a Denial of Service.
There is no known workaround at this time.
All EnergyMech users should update to the latest stable version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-irc/emech-3.0.2"