A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, tvOS 18.4, visionOS 2.4. An attacker on the local network may be able to cause a denial-of-service.
A memory corruption issue was addressed with improved bounds checking. This issue is fixed in tvOS 18.4.1, visionOS 2.4.1, iOS iOS 18.4.1 and iPadOS 18.4.1, macOS Sequoia 15.4.1. Processing an audio stream in a maliciously crafted media file may result in code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.
This issue was addressed by removing the vulnerable code. This issue is fixed in tvOS 18.4.1, visionOS 2.4.1, iOS iOS 18.4.1 and iPadOS 18.4.1, macOS Sequoia 15.4.1. An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.
A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.4. An app may be able to read files outside of its sandbox.
An access issue was addressed with additional sandbox restrictions on the system pasteboards. This issue is fixed in macOS Sequoia 15.4. An app may be able to access protected user data.
The issue was addressed with improved restriction of data container access. This issue is fixed in iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. An app may be able to access sensitive user data.
The issue was addressed with improved checks. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. Visiting a malicious website may lead to address bar spoofing.
A library injection issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.4. An app may be able to modify protected parts of the file system.
A privacy issue was addressed with improved private data redaction for log entries. This issue is fixed in macOS Sequoia 15.4. A sandboxed app may be able to access sensitive user data in system logs.