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Zero Day

Ryan Naraine, Emil Protalinski and Dancho Danchev

Apple patches Pwn2Own iPhone OS vulnerabilities

By | April 15, 2011, 11:10am PDT

Summary: Apple has released a critical update for its flagship iOS mobile operating system to fix several gaping security holes, including a few that were used in successful exploits at this year’s CanSecWest Pwn2Own contest.

Apple has released a critical update for its flagship iOS mobile operating system to fix several gaping security holes, including a few that were used in successful exploits at this year’s CanSecWest Pwn2Own contest.

The new iOS 4.3.2 software update, which is available for download via iTunes, provides cover for five documented security problems, including vulnerabilities exploited by Charlie Miller (iPhone) and a team of researchers who broke into RIM’s BlackBerry smartphone.

The raw details:

  • QuickLook: A memory corruption issue existed in QuickLook’s handling of Microsoft Office files. Viewing a maliciously crafted Microsoft Office file may lead to an unexpected application termination or arbitrary code execution. Credit to Charlie Miller and Dion Blazakis working with TippingPoint’s Zero Day Initiative.
  • WebKit: An integer overflow issue existed in the handling of nodesets. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. Credit to Vincenzo Iozzo, Willem Pinckaers, Ralf-Philipp Weinmann, and an anonymous researcher working with TippingPoint’s Zero Day Initiative.
  • WebKit: A use after free issue existed in the handling of text nodes. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. Credit to Vupen Security working with TippingPoint’s Zero Day Initiative, and Martin Barbella.

The iOS update also fixes the Comodo certificate trust policy problem that allowed an attacker with a privileged network position to intercept user credentials or other sensitive information.   This issue was also fixed in separate Safari and Mac OS X updates.

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Topics

Ryan Naraine is a journalist and social media enthusiast specializing in Internet and computer security issues.

Disclosure

Ryan Naraine

The most important disclosure is of my employment with Kaspersky Lab as a member of the global research and analysis team. Kaspersky Lab is a global company specializing in anti-malware and secure content management technologies. I do not own stocks or other investments in any technology company.

Biography

Ryan Naraine

Ryan Naraine is a journalist and social media enthusiast specializing in Internet and computer security issues. He is currently security evangelist at Kaspersky Lab, an anti-malware company with operations around the globe. He is taking a leadership role in developing the company's online community initiative around secure content management technologies.

Prior to joining Kaspersky Lab, Ryan was Editor-at-Large/Security at eWEEK, leading the magazine's and Web site's coverage of Internet and computer security issues and managing the popular SecurityWatch blog, covering the daily threats, vulnerabilities and IT security technologies. He also covered IT security, hacker attacks and secure content management topics for Jupiter Media's internetnetnews.com.

Ryan can be reached at naraine SHIFT 2 gmail.com. For daily updates on Ryan's activities, follow him on Twitter.

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RE: Apple patches Pwn2Own iPhone OS vulnerabilities
FAULKNE 13th Oct
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0 Votes
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Apple pies not commenting?

See? ANY Operating System could have flaws.
0 Votes
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RE: Apple patches Pwn2Own iPhone OS vulnerabilities
Pete "athynz" Athens 15th Apr 2011
@czorrilla Fully agree - but tell THAT to the Linux guys.
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@athynz
Oh - we are acutely aware of that, thanks.

My Ubuntu comes up almost every single day with requests to patch. And I have to enter an admin password every time. Grr.
@honeymonster
My Ubuntu comes up almost every single day with requests to patch. And I have to enter an admin password every time. Grr.

System level patches should require an admin password to install. They should also provide details on what is being patched. Automatically patching in the background has the potential to install unwanted (and possibly dangerous) malware.
0 Votes
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I have to agree with Rick_K
Michael Alan Goff 16th Apr 2011
It's better to have to put your admin password in every time and -know- what you're upgrading.
@czorrilla

All operating systems have vulnerabilities...some have a bucketload more exploited vulnerabilities...the devil is in those details.
0 Votes
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RE: Apple patches Pwn2Own iPhone OS vulnerabilities
Michael Alan Goff 17th Apr 2011
Actually, I'm of the opinion that a vulnerability is a worthless metric. It's exploits that we need to concern ourselves with.
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