bugtraq - ZDI-12-076 : Apple QuickTime MPEG Stream Padding Remote Code Execution Vulnerability

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Date: Wed, 6 Jun 2012 22:46:14 +0100
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
  "'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-12-076 : Apple QuickTime MPEG Stream Padding Remote Code
 Execution Vulnerability

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ZDI-12-076 : Apple QuickTime MPEG Stream Padding Remote Code Execution
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-076
June  6, 2012

- -- CVE ID:
CVE-2012-0659

- -- CVSS:
7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P

- -- Affected Vendors:

Apple

- -- Affected Products:

Apple Quicktime

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Apple's QuickTime Player. User interaction is
required to exploit this vulnerability in that the target must visit a
malicious page or open a malicious file.

The specific flaw exists within how the application calculates the padding
for an MPEG sample. When calculating the padding, the MPEG library will
subtract this from another length without checking for underflow. This
resulting length will then be used in a memcpy operation into a statically
sized buffer allocated on the heap. This can lead to code execution under
the context of the application.

- -- Vendor Response:

Apple has issued an update to correct this vulnerability. More details can
be found at:

http://support.apple.com/kb/HT5261

- -- Disclosure Timeline:
2011-10-21 - Vulnerability reported to vendor
2012-06-06 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by:

* Anonymous
* pa_kt / twitter.com/pa_kt / e1c14ba6

- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, 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. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint 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, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

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