[link|http://news.com.com/Darwin+flaws+survive+in+Apples+Mac+OS+X/2100-1002_3-5540955.html?tag=nefd.top|http://news.com.com/...html?tag=nefd.top]

A source-code audit of the open-source operating system from which Apple Computer borrowed much of the code for Mac OS X revealed four vulnerabilities of varying severity in Apple's software, a security company said Monday.

The flaws in Darwin affect Mac OS X version 10.3--dubbed Panther--and are caused by memory errors in the kernel, according to an advisory released by ImmunitySec, the security company that found the flaws.

"In terms of criticalness, this kind of bug mostly affects remote systems with multiple users," said David Aitel, founder and security consultant with ImmunitySec, adding that since Mac OS X is most often used on the desktop, the flaws will not be overly important on most people's systems.
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Yep, cashing in on that open source benefit where it counts. I expect fixes will be along right quick here.