USBIP Refcount Leak Vulnerability in Linux Kernel
Summary
GSD-2022-1002996: usb: usbip: fix a refcount leak in stub_probe(). Affects Kernel versions >= 3ff67445750a84de67faaf52c6e1895cb09f2c56, < 8afb048800919d0ab10c57983940eba956339f21. 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 was fixed in version v5.17.15. An attacker could exploit this vulnerability to cause a refcount leak, potentially leading to resource exhaustion or other memory-related 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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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
The USBIP refcount leak vulnerability in the Linux Kernel can be fixed by updating to version v5.17.15 or later. It is important to keep the Linux Kernel up to date 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 memory-related issues.
The impact of this vulnerability could include resource exhaustion or other memory-related issues, although the exact impact and attack plausibility have not been proven yet.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.17.15 or later, which includes the necessary fix.
No specific workaround has been provided for this vulnerability.
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