Security Update 2005-006
Apple has just unleashed Security Update 2005-006 via Software Update for Mac OS X 10.4.1, Mac OS X Server 10.4.1, Mac OS X 10.3.9, and Mac OS X Server 10.3.9.
In Tiger 10.4.1, the update runs 6.4MBs in size, and according to Apple, "delivers a number of security enhancements and is recommended for all Macintosh users. This update includes the following components: AFP Server, Bluetooth, CoreGraphics, Folder Permissions, launchd, LaunchServices, NFS, PHP, [and] VPN."
Here's the related KBarticle. Restart is required. Lock 'n load.