Multiple MacOS X vulnerabilities

Apple Mac OS X Directory Services contains a buffer overflow, Apple Mac OS X Server servermgrd authentication vulnerable to buffer overflow, Apple Mac OS X AppKit vulnerable to buffer overflow via the handling of maliciously crafted rich text files, Apple Mac OS X AppKit vulnerable to buffer overflow via maliciously crafted Microsoft Word files, Apple Mac OS X Safari vulnerable to arbitrary command execution via URLs in PDF files, Apple Safari fails to perform security checks on links in rich text content.