Advisory Details

June 2nd, 2009

Apple Quicktime Picture Viewer FLC Delta-Encoded Frame Decompression Vulnerability

ZDI-09-025
ZDI-CAN-402

CVE ID CVE-2009-0951
CVSS SCORE
AFFECTED VENDORS Apple
AFFECTED PRODUCTS Quicktime
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['6570']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of QuickTime Player. User interaction is required to exploit this vulnerability in that the target must either open a malicious file, or visit a malicious web page.

The specific flaw exists during decompression of a delta-encoded chunk. The algorithm to decompress the frame trusts a line specifier when calculating where to write decompressed data. This results in a relative write using attacker supplied values which can lead to remove code execution under the context of the current user.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT3591
DISCLOSURE TIMELINE
  • 2008-10-28 - Vulnerability reported to vendor
  • 2009-06-02 - Coordinated public release of advisory
CREDIT Anonymous
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