Advisory Details

January 22nd, 2016

Apple OS X IOAcceleratorFamily2 Out-Of-Bounds Indexing Privilege Escalation Vulnerability

CVE ID	CVE-2016-1718
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	OS X
VULNERABILITY DETAILS	This vulnerability allows local attackers to elevate privileges on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must open a malicious file. The specific flaw exists within the IOAcceleratorFamily2 interface. The issue lies in the failure to properly test a user-supplied index to ensure it is within the bounds of an array. An attacker can leverage this to escalate their privileges and execute code under the context of the kernel.
ADDITIONAL DETAILS	Apple has issued an update to correct this vulnerability. More details can be found at: https://support.apple.com/en-us/HT205731
DISCLOSURE TIMELINE	2015-11-02 - Vulnerability reported to vendor 2016-01-22 - Coordinated public release of advisory
CREDIT	Juwei Lin - Trend Micro

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