Apple Webkit ProcessInstruction Target Error Message Insertion Remote Code Execution VulnerabilityZDI-10-099: June 8th, 2010
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9872. For further product information on the TippingPoint IPS:
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple'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 with how WebKit inserts error messages into documents utilizing the SVG namespace. Upon a parsing error the library will attempt to access an element before repairing the XML. This will cause the library to access uninitialized memory which can lead to code execution under the context of the application.
Vendor ResponseApple has issued an update to correct this vulnerability. More details can be found at:
2010-02-23 - Vulnerability reported to vendor
2010-06-08 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
wushi of team509