CVE-2024-27218 in Android
Summary
by MITRE • 03/11/2024
In update_freq_data of TBD, 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.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 02/18/2025
The vulnerability identified as CVE-2024-27218 represents a critical out-of-bounds read condition within the update_freq_data function of an undisclosed software component. This flaw stems from the absence of proper input validation and bounds checking mechanisms that should prevent memory access beyond allocated buffer boundaries. The vulnerability exists in the frequency data update processing logic where the software fails to verify that incoming data indices or array offsets remain within acceptable limits before performing memory operations.
This type of vulnerability falls under the CWE-129 category of Improper Validation of Array Index, which is classified as a common weakness in software security practices. The flaw allows attackers to potentially read memory locations that should remain inaccessible, creating opportunities for information disclosure attacks. The absence of required bounds checking creates a predictable pattern where memory addresses beyond the intended data structures can be accessed and potentially exposed to unauthorized parties.
The operational impact of this vulnerability is significant as it enables local information disclosure without requiring any additional privileges or user interaction for exploitation. This means that any process running with the same privileges as the vulnerable application can potentially trigger the out-of-bounds read condition. The lack of user interaction requirements makes this vulnerability particularly dangerous as it can be exploited automatically without the need for social engineering or complex attack vectors. Attackers can leverage this condition to extract sensitive data from memory, potentially including authentication tokens, cryptographic keys, or other confidential information stored in adjacent memory locations.
The exploitation of this vulnerability aligns with ATT&CK technique T1005 which focuses on Data from Local System, and T1059 which covers Command and Scripting Interpreter. The attack surface is further expanded by the fact that this is a local privilege escalation vector that can be combined with other techniques to achieve broader system compromise. The vulnerability demonstrates poor defensive programming practices and highlights the importance of implementing robust input validation at all levels of software execution.
Mitigation strategies should include immediate implementation of bounds checking mechanisms within the update_freq_data function to validate all array indices and memory access operations. Software vendors should implement comprehensive code review processes that specifically target buffer overflow conditions and memory access violations. The fix should include proper validation of input parameters before any memory operations are performed, ensuring that all data access remains within allocated memory boundaries. Additionally, developers should adopt secure coding practices that include static analysis tools and runtime protections to detect and prevent similar vulnerabilities in future implementations. Regular security assessments and penetration testing should be conducted to identify and remediate similar issues before they can be exploited in real-world scenarios.