Vulnerability Note VU#782958

Apple QuickTime contains an integer overflow in the "QuickTime.qts" extension

Original Release date: 03 May 2004 | Last revised: 04 May 2004


Apple QuickTime contains an integer overflow vulnerability in the "QuickTime.qts" extension, which could result in arbitrary code execution.


Apple's QuickTime Player is a player that allow users to view local and remote audio/video content. Other applications, such as web browsers, that wish to utilize QuickTime functionality must use the QuickTime extension (QuickTime.qts) component. This component contains an integer overflow vulnerability in the routine responsible for copying Sample-to-Chunk table entries into an array.

According to the QuickTime File Format specification, a Sample-to-Chunk atom contains a 4-byte "number of entries" field specifying the count of entries in the sample-to-chunk-table. If the "number of entries" field contains an overly large value, an integer overflow could occur, which could allow an attacker to overwrite portions of heap memory.

For more information on QuickTime atoms, please refer to Apple's QuickTime File Format specification.


By convincing a user to execute a specially crafted QuickTime file, an attacker could cause QuickTime to crash or potentially execute arbitrary code.


Upgrade to QuickTime version 6.5.1.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Apple Computer Inc.Affected-03 May 2004
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



This vulnerability was reported by eEye Digital Security .

This document was written by Damon Morda.

Other Information

  • CVE IDs: CAN-2004-0431
  • Date Public: 18 Feb 2004
  • Date First Published: 03 May 2004
  • Date Last Updated: 04 May 2004
  • Severity Metric: 27.00
  • Document Revision: 22


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