CVE-2022-39105 in SC9863A
Summary
by MITRE • 10/14/2022
In sensor driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service in kernel.
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Analysis
by VulDB Data Team • 06/27/2026
The vulnerability identified as CVE-2022-39105 resides within a sensor driver component where an out-of-bounds write condition occurs due to insufficient input validation. This flaw represents a critical security weakness that can be exploited to disrupt system operations at the kernel level. The absence of proper bounds checking mechanisms allows malicious actors to manipulate sensor data inputs in ways that exceed allocated memory boundaries, potentially causing system instability or complete system failure. Such vulnerabilities are particularly dangerous in embedded systems and IoT devices where sensor drivers form critical components of device functionality and system monitoring capabilities.
This technical flaw aligns with CWE-787, which specifically addresses out-of-bounds write vulnerabilities in software systems. The vulnerability operates at the kernel level where sensor drivers typically execute with elevated privileges, making the potential impact significantly more severe than typical user-space applications. When an attacker can trigger an out-of-bounds write in kernel memory, they may manipulate critical system structures, corrupt memory layout, or force system crashes that result in denial of service conditions. The kernel context amplifies the risk because any memory corruption at this level can compromise entire system operations and potentially provide pathways for privilege escalation attacks.
The operational impact of CVE-2022-39105 manifests primarily through local denial of service scenarios where the affected system becomes unresponsive or crashes entirely. In sensor-based systems, this could mean complete loss of monitoring capabilities, which is particularly concerning for industrial control systems, automotive applications, or security monitoring equipment. The vulnerability can be triggered through crafted sensor data inputs that bypass normal validation processes, making it difficult to detect and prevent through standard network monitoring. Systems that rely heavily on continuous sensor data collection and processing are most vulnerable to this type of attack, as any disruption in sensor driver functionality can cascade into broader system failures.
Mitigation strategies for this vulnerability should focus on implementing comprehensive bounds checking mechanisms within sensor driver code and ensuring proper input validation at all data entry points. System administrators should prioritize updating affected sensor driver components to versions that include proper bounds checking implementations and memory safety enhancements. The ATT&CK framework categorizes this type of vulnerability under T1068, which involves exploit for privilege escalation, and T1499, which covers network disruption techniques. Regular security audits of kernel modules and sensor driver implementations should be conducted to identify similar bounds checking deficiencies. Additionally, implementing kernel memory protection mechanisms such as stack canaries, address space layout randomization, and kernel address space layout randomization can provide additional defense-in-depth measures to protect against exploitation attempts targeting this class of vulnerability.