Apple iOS up to 12.0.1 WebKit memory corruption

Summaryinfo

A vulnerability described as critical has been identified in Apple iOS up to 12.0.1. This affects an unknown part of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2018-4378. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple iOS up to 12.0.1 (Smartphone Operating System) and classified as critical. Affected by this issue is an unknown code block of the component WebKit. 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. CVE summarizes:

A memory corruption issue was addressed with improved validation. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.

The bug was discovered 10/30/2018. The weakness was shared 10/29/2018 as HT209192 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2018-4378 since 01/02/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. 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 04/08/2020). 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 validation.

The vulnerability scanner Nessus provides a plugin with the ID 118571 (macOS : Apple Safari < 12.0.1 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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371294 (Apple iTunes for Windows Prior to 12.9.1 Multiple Vulnerabilities (HT209197)).

Upgrading to version 12.1 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 (118571). The entries VDB-126195, VDB-126164, VDB-126165 and VDB-126166 are related to this item. 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

• 12.0.0
• 12.0.1

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

• 🔍
• 🔍

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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