Apple Quicktime TeXML sampleData Element Parsing Remote Code Execution Vulnerability

June 28th, 2012
ZDI-12-108 ZDI-CAN-1365

CVE ID

CVE-2012-0663

CVSS Score

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

Affected Vendors

Apple

Affected Products

QuickTime

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Quicktime. 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 the parsing of XML elements within a TeXML file. Specifically, when handling the sampleData element the code within QuickTime3GPP.qtx does not properly validate the length of the data within a color sub-field before copying it into a fixed-length buffer on the stack. Exploitation of this vulnerability could allow a remote attacker to execute arbitrary code under the context of the user running Quicktime.

Additional Details

Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT1222

Disclosure Timeline

  • 2011-10-21 - Vulnerability reported to vendor
  • 2012-06-28 - Coordinated public release of advisory

Credit

Alexander Gavrun

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