CVE-2022-48456 in SC7731E
Summary
by MITRE • 11/01/2023
In camera driver, there is a possible out of bounds write due to a incorrect bounds check. This could lead to local denial of service with System execution privileges needed
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Analysis
by VulDB Data Team • 11/29/2023
The vulnerability identified as CVE-2022-48456 resides within the camera driver component of a system, representing a critical out-of-bounds write flaw that stems from an improper bounds check implementation. This issue manifests in the kernel-level camera driver code where insufficient validation of input parameters allows for memory access beyond allocated boundaries. The flaw specifically impacts the driver's ability to properly validate buffer limits during camera operation, creating a scenario where malicious or malformed input could trigger memory corruption. Such vulnerabilities typically occur when developers fail to adequately verify input lengths or array indices against available memory boundaries, leading to potential exploitation scenarios.
The technical nature of this vulnerability aligns with CWE-787, which describes out-of-bounds write conditions where an application writes data past the end of a buffer, and may also relate to CWE-129, which covers insufficient bounds checking. The operational impact of this flaw is significant as it can result in local denial of service conditions when executed with system execution privileges. Attackers who can escalate to system-level privileges could leverage this vulnerability to crash the camera driver process, potentially causing the entire camera subsystem to become unavailable. This denial of service scenario could be particularly impactful in environments where camera functionality is critical for system operations or security monitoring.
From an attack perspective, this vulnerability follows patterns consistent with the attack technique described in MITRE ATT&CK framework under T1059.001 for command and scripting interpreter, where attackers might exploit system-level drivers to gain persistent access or cause operational disruption. The requirement for system execution privileges indicates that this vulnerability likely exists in a privileged execution context where the camera driver operates with elevated permissions. The out-of-bounds write condition creates potential for memory corruption that could be exploited to execute arbitrary code or cause system instability, though the current description suggests the primary impact is denial of service rather than arbitrary code execution.
Mitigation strategies for CVE-2022-48456 should focus on implementing robust bounds checking mechanisms within the camera driver code to prevent memory access violations. System administrators should ensure that camera driver components are updated with patches that address the improper bounds check implementation. Regular security assessments of kernel-level drivers should be conducted to identify similar vulnerabilities in other system components. Additionally, implementing runtime protections such as address space layout randomization and stack canaries could provide additional defense-in-depth measures against potential exploitation attempts. The vulnerability highlights the importance of rigorous input validation in kernel-space drivers and underscores the need for comprehensive code review processes that specifically target memory safety issues in critical system components.