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

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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/

Follow the ZDI on Twitter:

http://twitter.com/thezdi

-----BEGIN PGP SIGNATURE-----
Version: PGP Desktop 10.2.0 (Build 1950)
Charset: utf-8

wsBVAwUBT8/PmVVtgMGTo1scAQLKYQgAgqkAX7DnpsYwdzaYJ2Ww1JLCpU7/ilF+
5S5RwPLiDPtVY79givOAZkpee9+/b5vZd7AKwWJNK2GxXhpMLvXCtn3ODb36eQhf
lTlxB8KTsz+jXndo5qbRa6306aug8/PFSAZyVX9shp0/IuIPgScCKAKqoM1NUqRY
rfTHfxXWIwinDlcmR8FKy9Dni6BoiRjPJGwuzGLL2ThpFrt3M4fFgXei8lqM3Zdv
BWAqzPSXClRbWOQWeIiQW5ObAk0z8E+dbHgNd0XYCTp6sSgIncy/LxEMypLeqhEw
UD4kMxZ6exNWCpheDTac6VokNk1Fqt4a817BH1zE4es8t9A3JhVi0Q==
=sEem
-----END PGP SIGNATURE-----