Apple iOS/iPadOS Web integer overflow

Summaryinfo

A vulnerability classified as critical has been found in Apple iOS and iPadOS. The impacted element is an unknown function of the component Web Handler. The manipulation leads to integer overflow. This vulnerability is documented as CVE-2024-27833. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS (version now known) and classified as critical. This issue affects some unknown processing of the component Web Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is 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.

It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2024-27833 since 02/26/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing 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). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Apple

Name

• iOS
• iPadOS

License

• commercial

Website

• Vendor: https://www.apple.com/

CPE 2.3info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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