Advisory Details

September 24th, 2018

Apple Safari Array Concat Uninitialized Buffer Information Disclosure Vulnerability

CVE ID	CVE-2018-4358
CVSS SCORE	4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	Safari
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information 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 Arrays. By performing actions in JavaScript, an attacker can trigger access to memory prior to initialization. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in 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/HT209109
DISCLOSURE TIMELINE	2018-07-19 - Vulnerability reported to vendor 2018-09-24 - Coordinated public release of advisory 2018-09-24 - Advisory Updated
CREDIT	@phoenhex team (@bkth_ @5aelo @_niklasb)

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