CVE-2024-23658 in SC7731E
Summary
by MITRE • 04/08/2024
In camera driver, there is a possible use after free due to a logic error. This could lead to local denial of service with System execution privileges needed
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Analysis
by VulDB Data Team • 10/27/2024
The vulnerability identified as CVE-2024-23658 resides within camera driver components where a logic error manifests as a potential use after free condition. This flaw occurs when memory that has been freed is subsequently accessed or referenced by the driver code, creating a scenario where the system may attempt to operate on deallocated memory regions. The vulnerability is classified under the Common Weakness Enumeration category CWE-416, which specifically addresses the use of freed memory condition. When this logic error occurs in camera driver implementations, it represents a critical security concern as it can be exploited to disrupt normal system operations through a local denial of service attack.
The technical implementation of this vulnerability stems from improper memory management practices within the camera driver codebase. During normal operation, the driver allocates memory to handle camera data processing and image capture operations. However, a logic error in the code flow causes the driver to free memory resources while maintaining references to those same memory locations. When subsequent code execution attempts to access this memory, it results in undefined behavior that can manifest as system crashes, application failures, or complete denial of service conditions. The vulnerability requires system execution privileges to be effectively exploited, indicating that an attacker must already have elevated access rights within the system environment.
The operational impact of CVE-2024-23658 extends beyond simple service disruption as it can compromise the overall stability and reliability of systems that depend on camera functionality. In environments where camera drivers are critical components such as surveillance systems, industrial automation, or mobile devices, this vulnerability can lead to complete system unavailability. The local nature of the attack means that exploitation requires physical access or existing system compromise, but once successful, the attacker can leverage this condition to maintain persistent denial of service against camera services. This vulnerability aligns with attack patterns documented in the MITRE ATT&CK framework under the T1489 technique for denial of service, where adversaries manipulate system resources to prevent legitimate use of services.
Mitigation strategies for CVE-2024-23658 should focus on comprehensive memory management reviews and implementation of robust code validation practices. System administrators should prioritize updating camera driver components to versions that address the identified logic error through proper memory deallocation and reference management. The fix typically involves implementing proper null pointer checks after memory deallocation, ensuring that all references to freed memory are properly cleared, and conducting thorough code reviews to identify similar patterns that may exist in related driver components. Additionally, implementing runtime memory protection mechanisms such as stack canaries, address space layout randomization, and memory sanitization tools can provide additional defense in depth. Organizations should also consider implementing monitoring solutions that can detect anomalous memory access patterns that may indicate exploitation attempts, particularly in environments where camera functionality is critical to operations and where the vulnerability could be leveraged for more sophisticated attacks.