O-135: Apple QuickTime Integer Overflow

O-135: Apple QuickTime Integer Overflow Privacy and Legal Notice INFORMATION BULLETIN O-135: Apple QuickTime Integer Overflow [US-CERT Vulnerability Note VU#782958] May 4, 2004 18:00 GMT


PROBLEM:	Apple QuickTime contains an integer overflow vulnerability in the "QuickTime.qts" extension component.
PLATFORM:	QuickTime Version 6.5
DAMAGE:	By convincing a user to execute a specially crafted QuickTime file, an attacker could cause QuickTime to crash or potentially execute arbitrary code.
SOLUTION:	Upgrade to QuickTime version 6.5.1.

VULNERABILITY ASSESSMENT:	The risk is MEDIUM. An attacker could cause QuickTime to crash or potentially execute arbitrary code.

LINKS:
CIAC BULLETIN:	http://www.ciac.org/ciac/bulletins/o-135.shtml
ORIGINAL BULLETIN:	http://www.kb.cert.org/vuls/id/782958
CVE/CAN:	http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2004-0431

[***** Start US-CERT Vulnerability Note VU#782958 *****]

Vulnerability Note VU#782958

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

Overview

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

I. Description

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.

II. Impact

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

III. Solution

Upgrade

Upgrade to QuickTime version 6.5.1.

Systems Affected

Vendor Status Date Updated
Apple Computer Inc. Vulnerable 3-May-2004

References

http://www.eeye.com/html/Research/Advisories/AD20040502.html
http://secunia.com/advisories/11071/
http://www.securitytracker.com/alerts/2004/Apr/1010010.html
http://www.securiteam.com/windowsntfocus/5NP020KCVU.html
http://developer.apple.com/documentation/QuickTime/QTFF/index.html

Credit

This vulnerability was reported by eEye Digital Security.

This document was written by Damon Morda.

Other Information

Date Public 02/18/2004
Date First Published 05/03/2004 03:30:59 PM
Date Last Updated 05/04/2004
CERT Advisory
CVE Name CAN-2004-0431
Metric 27.00
Document Revision 22

[***** End US-CERT Vulnerability Note VU#782958 *****]

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