Advisory Details

August 18th, 2016

Apple Safari Array.splice Out-Of-Bounds Access Remote Code Execuction Vulnerability

ZDI-16-486
ZDI-CAN-3674

CVE ID CVE-2016-4622
CVSS SCORE 7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Apple
AFFECTED PRODUCTS Safari
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 24585. 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. 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 handling of Array.splice. The issue lies in the failure to ensure that an array's length has not changed during processing of user-supplied arguments. An attacker can leverage this vulnerability to execute code within the context of the current process.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
https://support.apple.com/en-us/HT206900
DISCLOSURE TIMELINE
  • 2016-04-26 - Vulnerability reported to vendor
  • 2016-08-18 - Coordinated public release of advisory
CREDIT Samuel Groß
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