Advisory Details

August 16th, 2011

Apple Quicktime Media Link src Parameter Remote Code Execution Vulnerability

ZDI-11-256
ZDI-CAN-1151

CVE ID CVE-2011-0248
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
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 11565. For further product information on the TippingPoint IPS: 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 the way Quicktime parses Quicktime Media Link (.qtl) files. The code which parses the .qtl parameter files fails to properly validate the size of the src parameter before copying it into a fixed length stack buffer. By supplying an overly long value for the src parameter, an attacker can leverage this flaw to execute malicious code within the context of the browser.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT4826
DISCLOSURE TIMELINE
  • 2011-04-11 - Vulnerability reported to vendor
  • 2011-08-16 - Coordinated public release of advisory
CREDIT Chkr_d591
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