An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, iOS 15.7.4 and iPadOS 15.7.4. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.
Apple Security Advisory 2023-03-27-2 - iOS 15.7.4 and iPadOS 15.7.4 addresses code execution, out of bounds read, out of bounds write, and use-after-free vulnerabilities.