Apple Safari Web integer overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Safari. This impacts an unknown function of the component Web Handler. This manipulation causes integer overflow. This vulnerability appears as CVE-2024-27833. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple Safari (affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Web Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An integer overflow was addressed with improved input validation. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, tvOS 17.5, visionOS 1.2. Processing maliciously crafted web content may lead to arbitrary code execution.

The advisory is shared at support.apple.com. This vulnerability is known as CVE-2024-27833 since 02/26/2024. The exploitation appears to be easy. 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 price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/04/2026).

The vulnerability scanner Nessus provides a plugin with the ID 209834 (SUSE SLES12 Security Update : webkit2gtk3 (SUSE-SU-2024:3751-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209834). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Apple

Name

• Safari

License

• commercial

Website

• Vendor: https://www.apple.com/

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Entryinfo

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

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