Stack-based buffer overflow in mod/server.mod/servrmsg.c in Eggdrop 1.6.18, and possibly earlier, allows user-assisted, remote IRC servers to execute arbitrary code via a long private message.
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00348.html
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00336.html
http://www.securityfocus.com/bid/24070
http://www.mandriva.com/security/advisories?name=MDKSA-2007:175
http://www.debian.org/security/2009/dsa-1826
http://www.debian.org/security/2008/dsa-1448
http://securitytracker.com/id?1018700
http://security.gentoo.org/glsa/glsa-200709-07.xml
http://secunia.com/advisories/35690
http://secunia.com/advisories/28347
http://secunia.com/advisories/27989
http://secunia.com/advisories/26826
http://secunia.com/advisories/26727