Samba versions 3.0.0 through 3.0.26a suffer from a vulnerability where the processing of specially crafted GETDC mailslot requests can result in a buffer overrun in nmbd.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60952/samba-nmbdoverflow.txt
Source: https://packetstormsecurity.com/files/60952/samba-nmbdoverflow.txt.html