Advisory Details

July 10th, 2018

Apple macOS IOGraphics IDState Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2018-4283
CVSS SCORE	6.3, AV:L/AC:M/Au:N/C:C/I:N/A:C
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	macOS
VULNERABILITY DETAILS	This vulnerability allows local attackers to disclose sensitive information on vulnerable installations of Apple macOS. 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 handling of the IOGraphics kext. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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/HT208937
DISCLOSURE TIMELINE	2018-05-18 - Vulnerability reported to vendor 2018-07-10 - Coordinated public release of advisory 2018-07-10 - Advisory Updated
CREDIT	juwei lin (@panicaII) of Trend Micro

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