CVE-2022-32897 in macOS
Summary
by MITRE • 06/10/2024
A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Monterey 12.5. Processing a maliciously crafted tiff file may lead to arbitrary code execution.
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Analysis
by VulDB Data Team • 03/25/2025
The memory corruption vulnerability identified as CVE-2022-32897 represents a critical security flaw in Apple's macOS operating system that has significant implications for system security and user safety. This vulnerability specifically affects the processing of TIFF image files through the system's image handling mechanisms, creating a potential pathway for attackers to execute arbitrary code on affected systems. The issue was addressed through improved validation measures in macOS Monterey 12.5, demonstrating Apple's ongoing efforts to maintain system integrity against sophisticated attack vectors that target multimedia processing components.
The technical flaw underlying CVE-2022-32897 manifests as a memory corruption vulnerability that occurs when the system processes maliciously crafted TIFF files. This type of vulnerability typically arises from insufficient input validation and memory management practices within the image processing pipeline. The flaw allows attackers to manipulate the memory layout of the application handling TIFF files, potentially leading to buffer overflows, heap corruption, or other memory-related issues that can be exploited to gain unauthorized code execution privileges. The vulnerability falls under the broader category of memory safety issues that are commonly classified as CWE-121, which encompasses heap-based buffer overflow conditions, and CWE-122, which addresses buffer overflow vulnerabilities in heap memory.
From an operational impact perspective, this vulnerability presents a substantial risk to macOS users and organizations that may encounter malicious TIFF files through various attack vectors including email attachments, web downloads, or compromised websites. The arbitrary code execution capability provides attackers with the means to install malware, escalate privileges, or establish persistent access to compromised systems. This vulnerability is particularly concerning given that TIFF files are commonly used in professional environments and can be encountered in legitimate business workflows, making the attack surface broader than typical file format vulnerabilities. The issue aligns with ATT&CK technique T1059.007, which covers command and scripting interpreter through the potential for code execution that could be achieved through this memory corruption.
Security professionals should prioritize immediate deployment of the macOS Monterey 12.5 update to mitigate this vulnerability, as the memory corruption issue could be exploited without user interaction in many scenarios. The remediation approach taken by Apple involved strengthening input validation mechanisms within the TIFF processing libraries, which represents a defensive programming approach to prevent malformed input from causing memory corruption. Organizations should also consider implementing additional security controls such as email filtering, web content filtering, and network monitoring to reduce the likelihood of encountering malicious TIFF files. The vulnerability highlights the importance of maintaining up-to-date systems and demonstrates how multimedia processing components can serve as attack vectors in modern cybersecurity landscapes.