From Cnet comes the news that Novell plans to release software on Tuesday that is designed to make it harder for new attacks to compromise existing Linux-based computers.
In short, "AppArmor lets an administrator create a profile that describes which files a given application may use. The software then enforces that profile. Consquently, if a remote attacker takes over that application, it's more difficult for the attacker to use the application for malicious purposes, such as taking over the entire computer."