Ethereal 0.9.4 released

• The SMB dissector could potentially dereference a NULL pointer in two cases.
• The X11 dissector could potentially overflow a buffer while parsing keysyms.
• The DNS dissector could go into an infinite loop while reading a malformed packet.
• The GIOP dissector could potentially allocate large amounts of memory.

No known exploits exist "in the wild" at the present time for any of these issues.