Apple macOS Font memory corruption

Summaryinfo

A vulnerability was found in Apple macOS. It has been declared as critical. The affected element is an unknown function of the component Font Handler. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2025-24244. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS (version now known). It has been declared as critical. This vulnerability affects some unknown processing of the component Font Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.7.5, tvOS 18.4, iPadOS 17.7.6, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, macOS Sonoma 14.7.5. Processing a maliciously crafted font may result in the disclosure of process memory.

The weakness was presented by The disclosure. The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2025-24244 since 01/17/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. 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 $0-$5k (estimation calculated on 04/07/2025).

The vulnerability scanner Nessus provides a plugin with the ID 233570 (macOS 14.x < 14.7.5 Multiple Vulnerabilities (122374)), 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 (233570). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Apple

Name

• macOS

License

• commercial

Website

• Vendor: https://www.apple.com/

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Once again VulDB remains the best source for vulnerability data.

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