Vulnerability identifier: #VU12145

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-4200

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apple Safari
Client/Desktop applications / Web browsers

Vendor: Apple Inc.

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in the WebKit component when handling malicious input. A remote attacker can trick the victim into loading a specially crafted web content, trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation
Update to version 11.1.

Vulnerable software versions

Apple Safari: 11.0 - 11.0.3

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External links
http://support.apple.com/en-us/HT208741

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.