A vulnerability was found in Apple watchOS up to 4.1 (Smartwatch Operating System). It has been rated as critical. Affected by this issue is an unknown part of the component IOSurface. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The weakness was released 12/05/2017 by Ian Beer with Google Project Zero as HT208325 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2017-13861 since 08/30/2017. The attack needs to be approached locally. A simple authentication is necessary for exploitation. Technical details are unknown but a public exploit is available. The advisory points out:

A memory corruption issue was addressed with improved memory handling.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 4.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (43320).

Productinfo

Type

• Smartwatch Operating System

Vendor

• Apple

Name

• watchOS

Version

• 4.0
• 4.1

License

• commercial

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CPE 2.2info

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