Apple Safari up to 12.1.0 WebKit type confusion

Summaryinfo

A vulnerability classified as critical has been found in Apple Safari up to 12.1.0. This impacts an unknown function of the component WebKit. This manipulation causes type confusion. This vulnerability is handled as CVE-2019-8597. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Apple Safari up to 12.1.0 (Web Browser). Affected by this vulnerability is some unknown processing of the component WebKit. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. Processing maliciously crafted web content may lead to arbitrary code execution.

The bug was discovered 05/13/2019. The weakness was released 05/13/2019 with Zero Day Initiative as HT210123 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2019-8597 since 02/18/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. 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 371785 (Apple macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra Not Installed (HT210119)).

Upgrading to version 12.1.1 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-134877, VDB-134920, VDB-134955 and VDB-134991. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Apple

Name

• Safari

Version

• 12.0
• 12.1.0

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

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• 🔍

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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