CVE-2022-32818 in macOS
Summary
by MITRE • 09/23/2022
The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.5. An app may be able to leak sensitive kernel state.
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Analysis
by VulDB Data Team • 05/23/2025
This vulnerability represents a memory handling flaw in macOS Monterey that could potentially allow applications to access or leak sensitive kernel state information. The issue stems from inadequate memory management controls within the operating system kernel, creating an avenue for malicious or poorly designed applications to extract confidential system data. The vulnerability was specifically addressed through enhanced memory handling mechanisms in macOS Monterey version 12.5, which improved the isolation and protection of kernel memory spaces.
The technical nature of this flaw falls under memory safety issues that can lead to information disclosure vulnerabilities. When applications interact with kernel memory, proper bounds checking and access controls should prevent unauthorized data access. However, the inadequate memory handling in the affected macOS versions allowed for potential information leakage that could expose sensitive kernel state data. This type of vulnerability is particularly concerning as it operates at the kernel level where system privileges and confidential information are stored.
The operational impact of this vulnerability extends beyond simple information disclosure, as leaked kernel state data could potentially provide attackers with insights into system internals, memory layout information, or other confidential details that could be leveraged in subsequent attacks. An attacker could exploit this to gain a better understanding of the target system's memory structure, potentially aiding in more sophisticated exploitation techniques. The vulnerability affects the fundamental security boundaries between user-space applications and kernel-space operations, undermining the principle of least privilege and system isolation.
The fix implemented in macOS Monterey 12.5 addresses this through improved memory handling mechanisms that better enforce memory boundaries and access controls. This aligns with security best practices outlined in the CWE database, specifically addressing memory safety issues that could lead to information disclosure. Organizations should prioritize updating to macOS Monterey 12.5 or later versions to mitigate this risk. Additionally, system administrators should monitor for any suspicious application behavior that might indicate attempts to exploit such memory handling vulnerabilities, as outlined in various ATT&CK framework techniques related to privilege escalation and information gathering. The vulnerability demonstrates the critical importance of proper memory management in operating system kernels and highlights the need for continuous security improvements in system-level components.