Advisory Details

August 11th, 2010

Apple Webkit SVG Floating Text Element Remote Code Execution Vulnerability

ZDI-10-153
ZDI-CAN-785

CVE ID CVE-2010-1787
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Apple
AFFECTED PRODUCTS WebKit
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10147. 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 Safari's Webkit. 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 library's process for handling floating elements within an SVG document. During layout of the element, the application will mismanage references to the floating element. Later the application will attempt to destroy this reference triggering corruption. Successful exploitation can lead to code execution under the context of the application.

ADDITIONAL DETAILS

Fixed in Safari 5.0.1: http://support.apple.com/kb/HT4276


DISCLOSURE TIMELINE
  • 2010-06-01 - Vulnerability reported to vendor
  • 2010-08-11 - Coordinated public release of advisory
CREDIT wushi of team509
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