CVE-2017-13786: Medium severity macos high sierra vulnerability

Published Oct 31, 2017
·
Updated

APFS. An issue existed in the handling of DMA. This issue was addressed by limiting the time the FileVault decryption buffers are DMA mapped to the duration of the I/O operation.

Other sources

An issue was discovered in certain Apple products. macOS before 10.13.1 is affected. The issue involves the "APFS" component. It does not properly restrict the DMA mapping time of FileVault decryption buffers, which allows attackers to read cleartext APFS data via a crafted Thunderbolt adapter.

Credit

Dmytro Oleksiuk

Affected Software

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

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 CVE-2017-13786?

CVE-2017-13786 is a vulnerability that exists in the handling of DMA in certain Apple products running macOS before 10.13.1.

2

How can the CVE-2017-13786 vulnerability be exploited?

The CVE-2017-13786 vulnerability can be exploited by attackers through a crafted Thunderbolt adapter, allowing them to read cleartext APFS data.

3

Which software versions are affected by CVE-2017-13786?

macOS before 10.13.1, macOS High Sierra up to version 10.13.1, and Apple Sierra and El Capitan are affected by CVE-2017-13786.

4

What is the severity of CVE-2017-13786?

CVE-2017-13786 has a severity rating of medium with a CVSS score of 4.6.

5

How can I fix CVE-2017-13786?

To fix the CVE-2017-13786 vulnerability, users should update their macOS to version 10.13.1 or later.

Contact

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