By Ryan Naraine
January 1, 2007
An easy-to-exploit security vulnerability in Apple Computer's QuickTime
media player could put millions of Macintosh and Windows users at risk
of code execution attacks.
The QuickTime flaw kicked off the Month of Apple Bugs project, which
promises to expose unpatched Mac OS X and Apple application
vulnerabilities on a daily basis throughout the month of January.
According to an advisory released Jan. 1, the flaw exists in the way
QuickTime handles a specially rigged "rtsp://" URL.
"By supplying a specially crafted string, [an] attacker could overflow a
attack vector, leading to an exploitable remote arbitrary code execution
condition," said LMH, one of the mysterious hackers behind the
He described exploitation of the issue as "trivial" and warned that
stack NX can also be rendered useless.
LMH said the issue was successfully exploited in QuickTime Player
Version 7.1.3. Previous versions are likely vulnerable as well. Both
Microsoft Windows and Mac OS X versions are affected.
The Cupertino, Calif.-based Apple markets QuickTime as a platform for
the handling of video, sound, animation, graphics, text and music. The
technologyand media playeris available for Windows and Mac users, making
it a lucrative target for malware writers.
"The only potential workaround would be to disable the "rtsp://" URL
handler, uninstalling QuickTime or simply live with the feeling of being
a potential target," according to the advisory.
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