Apple has distributed Security Update 2003-06-09.
According to the release notes included with the distribution, the new security update addresses a potential problem that arises when the Apple Filing Protocol, or AFP, is used to reshare a Network File System (NFS) mount. Also addressed in this update is a potential situation that causes LDAP bind authentication requests to be improperly sent when using Kerberos authentication.
The 1.4MB file is available for download through the Software Update System Preferences pane.
This story, "Apple offers Security Update for OS X" was originally published by PCWorld.