CVE-2024-22007 in Android
Summary
by MITRE • 03/11/2024
In constraint_check of fvp.c, 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 • 11/01/2024
The vulnerability identified as CVE-2024-22007 resides within the constraint_check function in the fvp.c file, representing a critical out-of-bounds read condition that fundamentally compromises system integrity. This flaw manifests as a missing bounds check during constraint validation processes, creating a scenario where the application accesses memory locations beyond the allocated buffer boundaries. The vulnerability operates at the core of memory management validation logic, where input parameters undergo constraint verification before being processed further within the system's operational flow.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms that fail to properly verify array indices or buffer limits before memory access operations. When the constraint_check function processes incoming data, it assumes that all input parameters fall within acceptable boundaries without performing necessary boundary checks. This oversight allows attackers to craft malicious inputs that trigger memory access violations, potentially exposing sensitive data from adjacent memory locations. The flaw operates under CWE-129, which specifically addresses insufficient bounds checking for array data access, making it particularly dangerous in systems where memory corruption can lead to information disclosure.
The operational impact of CVE-2024-22007 extends beyond simple data exposure, creating potential pathways for information disclosure that can reveal system internals, memory contents, or sensitive configuration data. Since exploitation requires no additional execution privileges and does not necessitate user interaction, the vulnerability represents a significant risk to system confidentiality and integrity. Attackers can leverage this condition to extract valuable information without requiring elevated access rights, making it particularly attractive for reconnaissance and data gathering activities. The vulnerability's characteristics align with ATT&CK technique T1005, which involves data from local system storage, as the out-of-bounds read can potentially access sensitive data stored in memory regions adjacent to the targeted buffers.
Mitigation strategies for this vulnerability should focus on implementing comprehensive bounds checking mechanisms throughout the constraint_check function and similar validation routines. Developers must ensure that all array indices and buffer access operations include proper validation before memory access occurs, utilizing techniques such as array length verification and pointer boundary checks. The recommended approach involves adding explicit bounds validation checks that verify input parameters against known acceptable ranges, ensuring that any attempt to access memory beyond allocated boundaries results in proper error handling rather than memory corruption. Additionally, code review processes should specifically target validation functions to identify similar patterns that might exist elsewhere in the codebase, as this vulnerability type often appears in multiple locations within complex software systems.