Advisory Details

July 10th, 2018

Apple Safari WebGL Out-Of-Bounds Access Remote Code Execution Vulnerability

CVE ID	CVE-2018-4261
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	Safari
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 WebGLRenderingContext's drawElements method. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access outside of an allocated buffer. An attacker can leverage this vulnerability to execute code under 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/HT208934
DISCLOSURE TIMELINE	2018-04-25 - Vulnerability reported to vendor 2018-07-10 - Coordinated public release of advisory 2018-07-10 - Advisory Updated
CREDIT	Omair

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