IRC Services is a system of services to be used with Internet Relay Chat networks.
loverboy reported that the "default_encrypt()" function in file encrypt.c does not properly handle overly long passwords.
A remote attacker could provide an overly long password to the vulnerable server, resulting in a Denial of Service.
There is no known workaround at this time.
All IRC Services users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/ircservices-5.0.63"