ftpd in linux-ftpd 0.17, and possibly other versions, performs a chdir before setting the UID, which allows local users to bypass intended access restrictions by redirecting their home directory to a restricted directory.

Buffer overflow in the SSL-ready version of linux-ftpd (linux-ftpd-ssl) 0.17 allows remote attackers to execute arbitrary code by creating a long directory name, then executing the XPWD command.