http://news.bbc.co.uk/1/hi/technology/6187302.stm
The federal US computer security watchdog has issued a warning
about a bug in Apple's OS X operating system.
The US Computer Emergency Readiness Team (US Cert) issued the alert
after security researchers produced code that could exploit the DMG
bug.
The flaw involves the way OS X handles disk images and could be
used to crash or take over a vulnerable machine.
So far the DMG bug has only been shown to work under laboratory
conditions and has not been seen in the wild.
The DMG bug came to light during a month-long project run by the
Info-Pull research group that aimed to find one "kernel" bug a day.
The kernel is the heart of an operating system.
The warning from US Cert said the memory corruption caused by the
bug could make a computer unstable or allow an attacker to hijack
it. It urged users to avoid downloading DMG files, which bear a
.dmg suffix, from unknown sources.
The bug even affects machines that are patched with the latest
fixes.
Apple has yet to provide a fix for the DMG bug though a workaround
is known which should stop computers falling victim.
The bug has only been proved to work under laboratory conditions.
No cases of it being exploited in the wild are known and no users
are thought to be at risk. The availability of the exploit code
might tempt some malicious hackers to craft webpages that take
advantage of it.
Users of Apple Mac computers are far less likely to suffer security
problems because the vast majority of viruses are written to
exploit Microsoft's Windows operating system. There are also
differences in the way that OS X works which help to prevent
malicious code taking hold.
The increasing popularity of Mac computers has led to increasing
scrutiny of Apple's operating system and security researchers are
unearthing many flaws and potential exploits.
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Only works under lab conditions... so don't think will be too big
an impact?