Vulnerability identifier: #VU16295

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-4439

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apple iOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description
The vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The weakness exists due to insufficient validation of user-supplied input in the Safari component. A remote attacker can send a specially crafted mail message and spoof UI.

Mitigation
Update to version 12.1.1.

Vulnerable software versions

Apple iOS: 12.1 16B92, 12.0 16A366 - 12.0.1 16A404

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External links
http://support.apple.com/en-us/HT209340

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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.