The samiftp.dll library in Sami FTP Server 1.1.3 allows local users to cause a denial of service (pmsystem.exe crash) by issuing (1) a CD command with a tilde (~) character or dot dot (/../) or (2) a GET command for an unavailable file.
The samiftp.dll library in Sami FTP Server 1.1.3 allows remote authenticated users to cause a denial of service (pmsystem.exe crash) via a GET request wit a large number of leading "/" (slash) characters.