Apple tvOS up to 12.1 Kernel memory corruption

Summaryinfo

A vulnerability was found in Apple tvOS up to 12.1. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component Kernel. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2018-4461. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple tvOS up to 12.1 (Digital Media Player) and classified as critical. This issue affects an unknown function of the component Kernel. 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:

A memory corruption issue was addressed with improved input validation. 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 shared 12/05/2018 by Ian Beer with Google Project Zero as HT209342 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2018-4461 since 01/02/2018. An attack has to be approached locally. The successful exploitation requires a simple authentication. Neither technical details nor an exploit are publicly available. The advisory points out:

A memory corruption issue was addressed with improved input validation.

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). The entries VDB-126171, VDB-127563, VDB-127564 and VDB-127567 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Digital Media Player

Vendor

• Apple

Name

• tvOS

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 the best quality for vulnerability data then you always have to consider VulDB.

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