ProFTPD NLST Command Argument Handling Remote Overflow

It was possible to crash the remote FTP server by issuing a specially crafted command, such as 'NLST aaaXXXX%u%...%u%u%u%%u%653300u%n' where 'XXXX' is replaced with four characters - ASCII values 0xDC, 0x4F, 0x07 and 0x08. This issue is known to affect ProFTPD version 1.2.0pre6, although other FT...