Apple iOS up to 11.3.1 Bluetooth memory corruption

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iOS up to 11.3.1. The impacted element is an unknown function of the component Bluetooth. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2018-4215. The attack must be carried out locally. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 11.3.1 (Smartphone Operating System). It has been rated as critical. This issue affects an unknown functionality of the component Bluetooth. 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 summary by CVE is:

An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the "Bluetooth" component. It allows attackers to gain privileges or cause a denial of service (buffer overflow) via a crafted app.

The bug was discovered 05/29/2018. The weakness was presented 05/29/2018 as HT208848 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2018-4215 since 01/02/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/20/2023). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A buffer overflow was addressed with improved size validation.

Upgrading to version 11.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See VDB-118648, VDB-118652, VDB-118657 and VDB-118659 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS

Version

• 11.3.0
• 11.3.1

License

• commercial

Website

• Vendor: https://www.apple.com/

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