CVE-2018-4174: Medium severity macos high sierra vulnerability

Published Mar 29, 2018
·
Updated

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted messages by leveraging an inconsistency in the user interface.

Other sources

Mail. An inconsistent user interface issue was addressed with improved state management.

Credit

John McCombs(Integrated Mapping Ltd), McClain Looney(LoonSoft Inc)

Affected Software

6 affected componentsFixes available
Apple macOS High Sierra<10.13.4
10.13.4
Apple Sierra
Apple El Capitan
Apple iOS<11.3
11.3
Apple iPhone OS<11.3
Apple iOS and macOS<10.13.4

Event History

Apr 3, 2018
CVE Published
via MITRE·06:00 AM
Data Sourced
via MITRE·06:00 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2018-4174?

CVE-2018-4174 is a vulnerability that affects certain versions of Apple iOS and macOS, specifically before iOS 11.3 and before macOS 10.13.4. It is related to the "Mail" component and allows man-in-the-middle attackers to read S/MIME encrypted messages by exploiting a user interface inconsistency.

2

What is the severity of CVE-2018-4174?

The severity of CVE-2018-4174 is medium, with a CVSS score of 5.9.

3

How does CVE-2018-4174 affect Apple products?

CVE-2018-4174 affects Apple iOS before 11.3 and macOS before 10.13.4, as well as Apple Sierra, Apple El Capitan, Apple iPhone OS before 11.3, and Apple Mac OS X before 10.13.4.

4

How can I fix CVE-2018-4174?

To fix CVE-2018-4174, users should update the affected Apple products to iOS 11.3 or later, or macOS 10.13.4 or later.

5

Where can I find more information about CVE-2018-4174?

You can find more information about CVE-2018-4174 on Apple's official support page: [https://support.apple.com/en-us/HT208693](https://support.apple.com/en-us/HT208693).

Contact

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