CVE-2024-29754 in Android
Summary
by MITRE • 04/06/2024
In TMU_IPC_GET_TABLE, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 03/28/2025
The vulnerability identified as CVE-2024-29754 resides within the TMU_IPC_GET_TABLE function, representing a critical out-of-bounds read condition that stems from inadequate input validation. This flaw manifests when the system processes data structures without proper bounds checking mechanisms, creating an exploitable path where memory access occurs beyond the allocated buffer boundaries. The absence of validation checks allows malicious actors to potentially read sensitive data from adjacent memory locations, leading to information disclosure vulnerabilities that can expose system internals or confidential data. The vulnerability specifically affects the inter-process communication mechanisms within the TMU (Technical Management Unit) framework, where IPC operations are handled through table-based data structures that require robust boundary validation to prevent unauthorized memory access patterns.
The technical implementation of this vulnerability demonstrates a classic buffer over-read scenario that aligns with CWE-129, which specifically addresses insufficient validation of length of input buffers. The flaw occurs during the processing of IPC table data structures where the system fails to validate the size or range of indices used to access table entries. This allows an attacker to craft malicious input that references memory locations beyond the intended table boundaries, potentially exposing kernel memory contents, configuration data, or other sensitive information stored in adjacent memory segments. The vulnerability operates at the kernel level within the IPC subsystem, making it particularly concerning as it can be exploited without requiring elevated privileges or additional execution capabilities. The lack of user interaction requirements for exploitation indicates that this vulnerability can be triggered automatically through normal system operations or by simply sending crafted IPC messages to the affected system components.
The operational impact of CVE-2024-29754 extends beyond simple information disclosure, as it represents a fundamental breakdown in memory safety mechanisms that can serve as a stepping stone for more sophisticated attacks. Attackers can leverage this vulnerability to gather intelligence about the system's internal state, including memory layouts, configuration parameters, or potentially sensitive data that may be stored in adjacent memory regions. The vulnerability's classification under the ATT&CK framework would align with techniques such as credential access and defense evasion, as the information disclosure can be used to gain insights into system configurations that may aid in subsequent attacks. The local nature of exploitation means that an attacker with basic user privileges can potentially access information that would normally be restricted, creating opportunities for privilege escalation or targeted attacks against specific system components.
Mitigation strategies for this vulnerability should focus on implementing comprehensive bounds checking mechanisms within the TMU_IPC_GET_TABLE function and similar IPC processing routines. The primary solution involves adding robust input validation that verifies all indices and buffer sizes before memory access operations occur, ensuring that all table access attempts remain within legitimate boundaries. System administrators should implement immediate patches that address the missing validation checks, while also considering broader security hardening measures such as kernel address space layout randomization and stack canaries to further protect against exploitation. The vulnerability's nature suggests that defensive programming practices should be enhanced throughout the IPC subsystem, with regular code reviews focusing on buffer management and memory access patterns. Additionally, monitoring systems should be configured to detect unusual IPC activity patterns that might indicate exploitation attempts, while network segmentation and access controls can help limit the potential impact of successful exploitation attempts.