The set of patches addresses a variety of security flaws, including several that could let an attacker gain control over a computer running the operating system software. The patch arrives after two weeks offor Apple Mac OS X safety, prompted by the and the in that period.
The Apple security update addresses those flaws, which affect the Safari Web browser and Apple Mail client. The vulnerabilities expose Mac users to risks that are more familiar to Windows owners: the installation of malicious code through a bad Web site or e-mail because of improper validation of downloads.
The update also changes iChat, Apple's instant messaging application, to thwart instant message threats such as theand attacked some Apple users.
"iChat now uses Download Validation to warn of unknown or unsafe file types during file transfers," Apple said.
Other flaws fixed in the update include four issues related to the PHP scripted programming language, two problems related to Apple's Directory Services, a problem with mounting of file servers and a bug in FileVault secure storage, which was found to be insecure in the way a FileVault image is created.
Security Update 2006-001 can be downloaded and installed via the Software Update feature in Mac OS X or from Apple Downloads.
"Apple advises Mac OS X users to keep their system current by installing this and all Mac OS X software updates," the representative said.