CVE-2023-22668 in 210 Processor
Summary
by MITRE • 12/05/2023
Memory Corruption in Audio while invoking IOCTLs calls from the user-space.
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Analysis
by VulDB Data Team • 12/23/2023
This vulnerability represents a critical memory corruption flaw that occurs within audio subsystem components when processing input/output control commands issued from user-space applications. The issue manifests as improper memory handling during the execution of ioctl system calls, which are fundamental mechanisms for device communication in unix-like operating systems. When user-space programs invoke audio-related ioctls, the kernel-level audio drivers fail to properly validate or sanitize input parameters, leading to potential buffer overflows, heap corruption, or arbitrary memory writes that can be exploited by malicious actors.
The technical root cause of this vulnerability aligns with common software security weaknesses documented in cwe-121 and cwe-125, which describe buffer overflow conditions and out-of-bounds memory access scenarios. Attackers can leverage this flaw by crafting specially crafted ioctl parameters that trigger memory corruption during audio processing operations. The vulnerability is particularly concerning because it operates at the kernel level where privileges are elevated, potentially allowing attackers to escalate their privileges from user-level processes to system-level execution. This type of memory corruption typically enables code execution primitives that can be used for privilege escalation or denial-of-service attacks against audio services.
From an operational perspective, this vulnerability creates significant risks for systems relying heavily on audio functionality including desktop computers, servers with audio capabilities, and embedded devices with multimedia support. The attack surface is broad as any application that utilizes audio ioctls for device control could serve as an entry point for exploitation. Network-based attacks become possible if audio services are exposed or if attackers can execute code on systems with legitimate audio access. The impact extends beyond simple system compromise to include potential data leakage, service disruption, and complete system takeover depending on the privilege level of the audio subsystem components.
Mitigation strategies should focus on implementing robust input validation and memory boundary checking within kernel-level audio drivers. System administrators should ensure all audio-related kernel modules are kept current with security patches from vendors and apply security updates promptly to address known memory corruption issues. The principle of least privilege should be enforced by restricting user-space applications from accessing audio ioctls unnecessarily, while also implementing proper memory management techniques such as stack canaries, address space layout randomization, and kernel exploit protection mechanisms. Additionally, monitoring and logging of ioctl calls can help detect anomalous behavior that may indicate exploitation attempts, and organizations should consider implementing network segmentation to limit access to audio services where possible. This vulnerability demonstrates the importance of secure coding practices in kernel space and highlights why comprehensive security testing of device drivers is essential for maintaining system integrity.