Apple has released a security update for OS X 10.6 and OS X 10.5 machines, which addresses a number of security holes for both the client and server versions of OS X. For both the client and server versions, the update fixes several problems that could lead to arbitrary code execution.
The specific services fixed are CoreGraphics, Apple Type Services, PHP, and libsecurity (certificate host name resolution), as well as Samba. The majority of the exploits are buffer overflows that could result in arbitrary code execution.
It is highly recommended that you apply these updates to your system, … Read more