Mac OS 10.5.1 update released

http://docs.info.apple.com/article.html?artnum=307004 - The Block all incoming connections setting for the Application Firewall allows any process running as user root (UID 0) to receive incoming connections, and also allows mDNSResponder to receive connections. This could result in the unexpected exposure of network services, as the original description is misleading. Please take this into account when locking down your OS 10.5 system.