Multiple vulnerabilities were discovered and corrected in subversion:

The mod_dav_svn Apache HTTPD server module will dereference a NULL
pointer if asked to deliver baselined WebDAV resources which can lead
to a DoS (Denial Of Service) (CVE-2011-1752).

The mod_dav_svn Apache HTTPD server module may in certain cenarios
enter a logic loop which does not exit and which allocates emory in
each iteration, ultimately exhausting all the available emory on the
server which can lead to a DoS (Denial Of Service) (CVE-2011-1783).

The mod_dav_svn Apache HTTPD server module may leak to remote users
the file contents of files configured to be unreadable by those users
(CVE-2011-1921).

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 upgraded to the 1.6.17 version which
is not vulnerable to these issues.