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TUCoPS :: Apple(multi) :: bx6058.htm

Apple QuickTime FLI LinePacket Remote Code Execution Vulnerability



ZDI-10-044: Apple QuickTime FLI LinePacket Remote Code Execution Vulnerability
ZDI-10-044: Apple QuickTime FLI LinePacket Remote Code Execution Vulnerability



ZDI-10-044: Apple QuickTime FLI LinePacket Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-044 
April 2, 2010

-- CVE ID:
CVE-2010-0520

-- Affected Vendors:
Apple

-- Affected Products:
Apple Quicktime

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9628. 
For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com 

-- 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 QuickTimeAuthoring.qtx during the
parsing of DELTA_FLI chunks stored within a malformed .fli file. The
applications trusts a user-supplied length for decompression which can
be modified to copy more data than necessary leading to a buffer
overflow. Successful exploitation can lead to code execution under the
context of the current user.

-- Vendor Response:
Apple states:
http://support.apple.com/kb/HT4104 

http://support.apple.com/kb/HT4070 

-- Disclosure Timeline:
2009-11-06 - Vulnerability reported to vendor
2010-04-02 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Moritz Jodeit of n.runs AG
    * Anonymous

-- 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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