Apple watchOS up to 5.3.8/6.2.8/7.0.3 CoreAudio out-of-bounds write

Summaryinfo

A vulnerability marked as critical has been reported in Apple watchOS up to 5.3.8/6.2.8/7.0.3. The impacted element is an unknown function of the component CoreAudio. This manipulation causes out-of-bounds write. This vulnerability appears as CVE-2020-10017. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Apple watchOS up to 5.3.8/6.2.8/7.0.3 (Smartwatch Operating System). Affected by this vulnerability is an unknown code of the component CoreAudio. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 11/05/2020 by Francis as HT211928 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2020-10017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:

Processing a maliciously crafted audio file may lead to arbitrary code execution

Upgrading to version 5.3.9, 6.2.9 or 7.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

An out-of-bounds write was addressed with improved input validation.

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Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

Version

• 5.3.0
• 5.3.1
• 5.3.2
• 5.3.3
• 5.3.4
• 5.3.5
• 5.3.6
• 5.3.7
• 5.3.8
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3

License

• commercial

Website

• Vendor: https://www.apple.com/

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