CVE-2024-22006 in Android
Summary
by MITRE • 03/11/2024
OOB read in the TMU plugin that allows for memory disclosure in the power management subsystem of the device.
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Analysis
by VulDB Data Team • 11/06/2024
The vulnerability identified as CVE-2024-22006 represents a critical out-of-bounds read flaw within the TMU plugin component of a device's power management subsystem. This issue manifests as a memory disclosure vulnerability that arises from improper bounds checking during the processing of power management requests. The TMU plugin, which stands for Thermal Management Unit, is responsible for monitoring and controlling thermal conditions within the device to prevent overheating and maintain optimal performance. The vulnerability occurs when the plugin fails to properly validate input data boundaries, allowing an attacker to read memory locations beyond the allocated buffer space.
The technical implementation of this vulnerability stems from a classic buffer overread condition that falls under the CWE-125 weakness category, which specifically addresses out-of-bounds read errors in software implementations. When the TMU plugin processes incoming power management commands or thermal data, it does not adequately verify the size or content of the input parameters before attempting to access memory locations. This flaw enables an attacker to craft malicious input that causes the system to read adjacent memory regions, potentially exposing sensitive data including kernel memory addresses, cryptographic keys, or other confidential information. The vulnerability exists within the power management subsystem, which operates at a privileged level and has direct access to hardware resources, making the memory disclosure particularly dangerous.
The operational impact of CVE-2024-22006 extends beyond simple information disclosure, as it can serve as a foundational weakness for more sophisticated attacks within the ATT&CK framework's initial access and privilege escalation phases. An adversary who successfully exploits this vulnerability could potentially gain insights into the memory layout of the device's operating system, enabling them to craft more targeted attacks against the power management subsystem or other components. The memory disclosure could reveal kernel addresses, which are crucial for bypassing security mitigations like address space layout randomization, or expose sensitive data structures that could aid in developing exploits for other vulnerabilities. This vulnerability particularly affects devices where the power management subsystem is exposed to untrusted inputs or where privilege separation is insufficient.
Mitigation strategies for CVE-2024-22006 should focus on implementing robust input validation and bounds checking within the TMU plugin component. The primary fix involves adding proper parameter validation to ensure that all input data is checked against expected size constraints before any memory access operations occur. Security patches should include enhanced buffer management practices that prevent out-of-bounds memory reads through proper use of memory safety mechanisms such as bounds checking libraries or compiler-based protections. Organizations should also implement monitoring solutions that can detect anomalous behavior patterns in the power management subsystem that might indicate exploitation attempts. Additionally, system administrators should consider applying microcode updates to the affected hardware components and ensuring that the power management subsystem operates with minimal privileges to reduce the potential impact of successful exploitation attempts. The vulnerability demonstrates the importance of memory safety practices in embedded systems and highlights the need for comprehensive security testing of critical subsystems like power management components that operate at privileged levels within device architectures.