According to this Samba advisory, Evgeny
Demidov discovered that the Samba SMB/CIFS server has a buffer overflow bug
in the Samba Web Administration Tool (SWAT) on decoding Base64 data during
HTTP Basic Authentication. Samba versions between 3.0.2 through 3.0.4 are
affected. (CAN-2004-0600)
Another buffer overflow bug has been located in the Samba code used to
support the "mangling method = hash" functionality. The default setting for
this parameter is "mangling method = hash2" and therefore Samba is not
vulnerable by default. Samba versions between 2.2.0 through 2.2.9 and 3.0.0
through 3.0.4 are affected. (CAN-2004-0686)