TippingPoint Zero Day Initiative

Apple Safari SearchInputType Type Confusion Remote Code Execution Vulnerability

ZDI-17-054: January 24th, 2017


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 26419. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. 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 SearchInputType objects. The issue results from the lack of proper validation of user-supplied data which can result in a type confusion condition. An attacker can leverage this vulnerability to achieve remote code execution under the context of the process.

Vendor Response

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

Disclosure Timeline

    2016-11-10 - Vulnerability reported to vendor
    2017-01-24 - Coordinated public release of advisory


This vulnerability was discovered by:
    Neymar of Tencent's Xuanwu LAB(http://www.tencent.com)