CWE
200
Advisory Published
CVE Published
Updated

CVE-2017-13821: Infoleak

First published: Tue 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.

Credit: Australian Cyber Security Centre – Australian Signals Directorate Australian Cyber Security Centre – Australian Signals Directorate Australian Cyber Security Centre – Australian Signals Directorate Australian Cyber Security Centre – Australian Signals Directorate product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple Mac OS X<=10.13.0
Apple macOS High Sierra<10.13.1
10.13.1
Apple Sierra
Apple El Capitan
Apple watchOS<4
4
Apple iOS<11
11
Apple macOS High Sierra<10.13
10.13

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2017-13821.

  • 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.

  • What is the severity of CVE-2017-13821?

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

  • 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.

  • 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.

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