full-disclosure - ZDI-06-020: Apple iTunes AAC File Parsing Integer Overflow Vulnerability

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Message-ID: <OF0DD9533D.E45D1A77-ON8825719D.0057384E-8825719D.005907AA@3com.com>
Date: Fri Jun 30 17:08:19 2006
From: zdi-disclosures at 3Com.com (zdi-disclosures@...m.com)
Subject: ZDI-06-020: Apple iTunes AAC File Parsing Integer
	Overflow Vulnerability

ZDI-06-020: Apple iTunes AAC File Parsing Integer Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-06-020.html
June 29, 2006

-- CVE ID:
CVE-2006-1467

-- Affected Vendor:
Apple

-- Affected Products:
iTunes

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April  3, 2006 by Digital Vaccine protection
filter ID 4282. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of Apple iTunes. Exploitation requires an
attacker to convince a target user into opening a malicious play list
file.

The specific flaw exists during the processing of malicious AAC media
files such as those with extensions .M4A and .M4P. During the parsing
of the sample table size atom (STSZ), a malformed 'sample_size_table'
value can trigger an integer overflow leading to an exploitable memory
corruption.

-- Vendor Response:
Apple has addressed this issue in the latest release of iTunes, version
6.0.5. More information is available from the vendor web site at:

http://docs.info.apple.com/article.html?artnum=303952

-- Disclosure Timeline:
2006.04.03 - Digital Vaccine released to TippingPoint customers
2006.04.07 - Vulnerability reported to vendor
2006.06.29 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by ATmaCA.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.