USBIP Refcount Leak Vulnerability in Linux Kernel
Summary
GSD-2022-1002647: usb: usbip: fix a refcount leak in stub_probe(). Affects Kernel versions >= 3ff67445750a84de67faaf52c6e1895cb09f2c56, < 11c65408bd0ba1d9cd1307caa38169292de9cdfb. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. USBIP (USB over IP) is a kernel module that allows USB devices to be shared over a network. It enables remote access to USB devices as if they were connected locally. This vulnerability affects the USBIP module in the Linux Kernel.
Vulnerability Detail
The USBIP module in the Linux Kernel suffers from a refcount leak vulnerability in the stub_probe() function. This vulnerability was introduced in version v3.19 of the Linux Kernel and fixed in version v5.18.4. An attacker could exploit this vulnerability to cause a refcount leak, potentially leading to resource exhaustion or other security issues. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The USBIP refcount leak vulnerability in the Linux Kernel can be fixed by updating to version v5.18.4 or later. It is recommended to apply the necessary update to ensure the security and stability of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The USBIP module is a kernel module in the Linux Kernel that allows USB devices to be shared over a network, enabling remote access to USB devices as if they were connected locally.
A refcount leak vulnerability occurs when a reference count for a resource is not properly managed, leading to a leak of resources and potential security issues.
The impact of this vulnerability is not yet proven. However, it could potentially lead to resource exhaustion or other security issues.
To fix this vulnerability, update the Linux Kernel to version v5.18.4 or later, which includes the necessary fix for the refcount leak vulnerability.
You can obtain the updated Linux Kernel from the official Linux Kernel repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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