Vulnerability in comedi: dt9812 package - Fix DMA buffers on stack
Summary
UVI-2021-1001993: comedi: dt9812: fix DMA buffers on stack. Affects Kernel versions >= 63274cd7d38a3322d90b66a5bc976de1fb899051, < 39ea61037ae78f14fa121228dd962ea3280eacf3. No fix is published. How to fix ↓
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Background
The comedi package is a Linux kernel driver framework that provides a unified interface for various data acquisition and control devices. It allows userspace programs to interact with these devices through a consistent API. The dt9812 driver is specifically designed for the Data Translation DT9812 USB data acquisition device. It enables users to perform data acquisition and control operations using this device.
Vulnerability Detail
The vulnerability in the comedi: dt9812 package involves the use of DMA (Direct Memory Access) buffers on the stack. DMA buffers are used for efficient data transfer between devices and memory without involving the CPU. However, in this case, the DMA buffers are allocated on the stack, which can lead to stack overflows and potential security vulnerabilities. An attacker could exploit this vulnerability to execute arbitrary code or cause a denial-of-service (DoS) condition.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to apply the fix by updating to the latest version of the Linux Kernel.
Conclusion
The comedi: dt9812 package in the Linux Kernel has a vulnerability related to the use of DMA buffers on the stack. This can lead to stack overflows and potential security risks. It is recommended to update to the latest version of the Linux Kernel to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The comedi package is a Linux kernel driver framework for data acquisition and control devices.
The dt9812 driver is a specific driver in the comedi package designed for the Data Translation DT9812 USB data acquisition device.
A DMA buffer is a buffer used for direct memory access, enabling efficient data transfer between devices and memory without CPU involvement.
This vulnerability could allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition.
To fix this vulnerability, update to the latest version of the Linux Kernel, which includes the necessary fix for the comedi: dt9812 package.
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