Apple iOS up to 12.1 Kernel memory corruption

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple iOS up to 12.1. This vulnerability affects unknown code of the component Kernel. Executing a manipulation can lead to memory corruption. This vulnerability is registered as CVE-2018-4447. The attack needs to be launched locally. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple iOS up to 12.1 (Smartphone Operating System) and classified as critical. This vulnerability affects some unknown functionality of the component Kernel. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A memory corruption issue was addressed with improved state management. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.

The bug was discovered 12/05/2018. The weakness was published 12/05/2018 by Juwei Lin and Zhengyu Dong with TrendMicro as HT209340 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2018-4447 since 01/02/2018. Local access is required to approach this attack. A single authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 04/18/2020). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A memory corruption issue was addressed with improved state management.

The vulnerability scanner Nessus provides a plugin with the ID 119841 (macOS 10.14.x < 10.14.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371369 (Apple macOS Mojave 10.14.2, Security Update 2018-003 High Sierra, Security Update 2018-006 Sierra Not Installed(HT209341)).

Upgrading to version 12.1.1 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 Tenable (119841). Similar entries are available at VDB-126171, VDB-127582, VDB-127563 and VDB-127564. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS

Version

• 12.0
• 12.1

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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