QuickTime is Apple's media player product used to render video and other media. For more information visit http://www.apple.com/quicktime/
The Synchronized Multimedia Integration Language (SMIL) provides a high-level scripting syntax for describing multimedia presentations. SMIL files are text files that use XML-based syntax to specify what media elements to present, and where and when to present them.
Remote exploitation of an integer overflow vulnerability in Apple Computer Inc.'s QuickTime media player could allow attackers to execute arbitrary code in the context of the targeted user.
The vulnerability specifically exists in QuickTime players handling of the title and author fields in an SMIL file. When parsing an SMIL file, arithmetic calculations can cause insufficient memory to be allocated. When copying in user-supplied data from the SMIL file, a heap-based buffer overflow occurs. This results in a potentially exploitable condition.
Exploitation could allow attackers to execute arbitrary code in the context of the current user.
In order to exploit this vulnerability, an attacker must persuade a user into using QuickTime to open a specially crafted SMIL file. This could be accomplished using a malicious SMIL file referenced from a website under the attacker's control.
iDefense Labs confirmed this vulnerability exists in version 7.1.3 and 7.1.5 of QuickTime on Windows and Mac OS X. Previous versions are suspected to be vulnerable.
iDefense is currently unaware of any effective workarounds for this vulnerability.
Apple has released QuickTime 7.2 which resolves this issue. More information is available via Apple's QuickTime Security Update page at the URL shown below.
The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2007-2394 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems.
04/02/2007 Initial vendor notification
04/09/2007 Initial vendor response
07/11/2007 Coordinated public disclosure
This vulnerability was reported to iDefense by David Vaartjes from ITsec Security Services http://www.itsec-ss.nl/.
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Copyright © 2007 Verisign, Inc.
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