Subversion was updated to version 1.6.17 to fix several
security issues:

- CVE-2011-1752: The mod_dav_svn Apache HTTPD server
module can be crashed though when asked to deliver
baselined WebDAV resources.
- CVE-2011-1783: The mod_dav_svn Apache HTTPD server module
can trigger a loop which consumes all available memory on
the system.
- CVE-2011-1921: 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.