Apple has released a new Security Update, 2005-009.  A number of products have been patched, including Apache2, apache_mod_ssl, CoreFoundation, curl, iodbcadmintool, OpenSSL, passwordserver, Safari, sudo and syslog.

Security Update 2005-009 may be obtained from the Software Update pane in System Preferences, or from Apple's Software Downloads web site:
http://www.apple.com/support/downloads/.