Apple iOS up to 12.2 WebKit array index

Summaryinfo

A vulnerability described as critical has been identified in Apple iOS up to 12.2. Affected by this issue is some unknown functionality of the component WebKit. The manipulation results in array index. This vulnerability is identified as CVE-2019-8587. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple iOS up to 12.2 (Smartphone Operating System). It has been classified as critical. Affected is an unknown code block of the component WebKit. The manipulation with an unknown input leads to a array index vulnerability. CWE is classifying the issue as CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 05/13/2019. The weakness was released 05/13/2019 by G. Geshev with Zero Day Initiative as HT210118 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2019-8587 since 02/18/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/18/2023). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371784 (Apple Safari Multiple Vulnerabilities (HT210123)).

Upgrading to version 12.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at VDB-134869, VDB-134870, VDB-134871 and VDB-134872. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS

Version

• 12.0
• 12.1
• 12.2

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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