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Credit:
The information has been provided by Luigi Auriemma.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-340/
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Vulnerable Systems:
* 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 how the application parses font names embedded within an atom. When parsing the font name, the application will treat a length from the file as a signed value when copying font data into a buffer. Due to an unsigned promotion, this can be used to write outside the bounds of a buffer which can lead to code execution under the context of the application.
Patch Availability:
Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT5016
CVE Information:
CVE-2011-3248
Disclosure Timeline:
2011-07-20 - Vulnerability reported to vendor
2011-12-07 - Coordinated public release of advisory
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