Apple Computers released an update which addresses a number of security issues in the Mac OS X and OS X Server systems.  This announcement is available at Security Update 2007-004 .  There are about 25 separate vulnerabilities that are addressed which range from remote attackers causing denial of service attacks all the way to local users having some form of escalation of privileges.  Most of these updates are quite serious and should be reviewed and applied appropriately as allowed by your local patch testing and management policies.

The updates can be applied via the Software Update icon in the apple menu, or downloading and installing the appropriate update available from Apple Support Downloads site.

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Scott Fendley
ISC Handler