Multiple vulnerabilities were discovered and corrected in proftpd:

Multiple directory traversal vulnerabilities in the mod_site_misc
module in ProFTPD before 1.3.3c allow remote authenticated users to
create directories, delete directories, create symlinks, and modify
file timestamps via directory traversal sequences in a (1) SITE
MKDIR, (2) SITE RMDIR, (3) SITE SYMLINK, or (4) SITE UTIME command
(CVE-2010-3867).

Multiple stack-based buffer overflows in the pr_netio_telnet_gets
function in netio.c in ProFTPD before 1.3.3c allow remote attackers
to execute arbitrary code via vectors involving a TELNET IAC escape
character to a (1) FTP or (2) FTPS server (CVE-2010-4221).

Packages for 2009.0 are provided as of the Extended Maintenance
Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=490

The updated packages have been patched to correct these issues.