gftp - missing input sanitising

Albert Puigsech Galicia discovered a directory traversal vulnerability
in a proprietary FTP client (CAN-2004-1376) which is also present in
gftp, a GTK+ FTP client. A malicious server could provide a specially
crafted filename that could cause arbitrary files to be overwritten or
created by the client.

For the stable distribution (woody) this problem has been fixed in
version 2.0.11-1woody1.

For the unstable distribution (sid) this problem has been fixed in
version 2.0.18-1.

We recommend that you upgrade your gftp package.