Advisory Details

September 26th, 2017

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

CVE ID	CVE-2017-7091
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 RenderFlowThread elements. By manipulating a document's elements an attacker can trigger a memory access past the end of an allocated object. 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-ca/HT208116
DISCLOSURE TIMELINE	2017-05-04 - Vulnerability reported to vendor 2017-09-26 - Coordinated public release of advisory
CREDIT	Wei Yuan of Baidu Security Lab

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