Vulnerability identifier: #VU13175

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-2018-4227

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to a flaw in the Mail component in the processing of S/MIME-encrypted email. A remote attacker can obtain contents on the email.

Mitigation
Update to version 10.13.4.

Vulnerable software versions

macOS: 10.13.4 17E199

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External links
http://support.apple.com/en-us/HT208849

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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.