A remotely-exploitable vulnerability has been found in the "wu-ftpd" package. Specifically the command "SITE EXEC" is can overflow its buffer leading to compromise.
The "wu-ftpd" package provides FTP server functionality and is enabled by default on the Developer and OfficeServer products.
Download the following RPM packages to the NetWinder into a temporary
directory, then install them with the command "rpm -Uvh *.rpm". Be sure
there are no other files ending in ".rpm" in the temporary directory. See
http://www.netwinder.org/security/install.html for more help.
REFERENCESReported on Red Hat's bugtraq on June 23, 2000.