ZDI-10-031: Apple Webkit Blink Event Dangling Pointer Remote Code Execution Vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2010-03-17T00:00:00


ZDI-10-031: Apple Webkit Blink Event Dangling Pointer Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-031 March 16, 2010

-- Affected Vendors: Apple

-- Affected Products: Apple WebKit

-- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 9598. For further product information on the TippingPoint IPS, visit:


-- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable software utilizing Apple's WebKit library. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.

The specific flaw exists due to a failure to unregister a callback pointer during the destruction of a particular type of element when embedded inside a 'blink' container. The application dereferences the original resource which can can be leveraged by an attacker to execute arbitrary code under the context of the current user.

-- Vendor Response: Apple has issued an update to correct this vulnerability. More details can be found at:


-- Disclosure Timeline: 2009-10-27 - Vulnerability reported to vendor 2010-03-16 - Coordinated public release of advisory

-- Credit: This vulnerability was discovered by: * wushi&Z of team509

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