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10.5.5 update fixes DNS vulnerability

Robert Palmer

Apple's Mac OS X 10.5.5 update (and Security Update 2008-006) fixes a critical DNS vulnerability that could allow attackers to trick victims into visiting malicious Web sites using what's known as a "cache poisoning attack." We wrote about the vulnerability in August.

Although Apple's release notes say BIND was updated "to address performance issues," the update also delivers the promised address port randomization that protects users from such cache poisoning attacks. The original patch offered protection for Apple's servers but did not completely protect client systems.

Apple's updates fixed flaws in several applications and system components, including some that attackers could use to run unauthorized software on a user's computer.

[Via IDG.]

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