Advisory Details

November 15th, 2016

Apple OS X WindowServer _XSetPreferencesForWorkspaces Type Confusion Privilege Escalation Vulnerability

CVE ID	CVE-2016-4710
CVSS SCORE	4.4, AV:L/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	OS X
VULNERABILITY DETAILS	This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Apple OS X. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CoreGraphics module. The issue lies in the failure to properly validate user-supplied data which can result in a type confusion condition. An attacker can leverage this vulnerability to escalate privileges under the context of WindowServer.
ADDITIONAL DETAILS	Apple has issued an update to correct this vulnerability. More details can be found at: https://support.apple.com/en-us/HT207170
DISCLOSURE TIMELINE	2016-06-14 - Vulnerability reported to vendor 2016-11-15 - Coordinated public release of advisory
CREDIT	e048b7039acc9483d42ca9ef197bd909

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