CVE-2017-13821: Infoleak

Published Sep 19, 2017
·
Updated

An issue was discovered in certain Apple products. macOS before 10.13.1 is affected. The issue involves the "CFString" component. It allows attackers to bypass intended memory-read restrictions via a crafted app.

Other sources

CFString. A validation issue was addressed with improved input sanitization.

Credit

Australian Cyber Security Centre – Australian Signals Directorate

Affected Software

7 affected componentsFixes available
Apple macOS High Sierra<10.13
10.13
Apple macOS High Sierra<10.13.1
10.13.1
Apple Sierra
Apple El Capitan
Apple WatchOS<4
4
Apple iOS and macOS<=10.13.0
Apple iOS<11
11

Event History

Nov 13, 2017
CVE Published
via MITRE·03:00 AM
Data Sourced
via MITRE·03:00 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2017-13821.

2

Which products are affected by CVE-2017-13821?

macOS High Sierra before version 10.13.1, Sierra, El Capitan, iOS before version 11, Mac OS X before version 10.13.1, and watchOS before version 4 are all affected.

3

What is the severity of CVE-2017-13821?

The severity of CVE-2017-13821 is medium with a CVSS score of 5.5.

4

How can an attacker exploit CVE-2017-13821?

An attacker can exploit CVE-2017-13821 by bypassing intended memory-read restrictions via a crafted app.

5

Is there a fix available for CVE-2017-13821?

Yes, Apple has released a fix for CVE-2017-13821. Users should update to macOS 10.13.1 or higher, iOS 11 or higher, or watchOS 4 or higher.

Contact

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