Vulnerability in comedi: vmk80xx
Summary
GSD-2021-1002141: comedi: vmk80xx: fix transfer-buffer overflows. Affects Kernel versions >= 985cafccbf9b7f862aa1c5ee566801e18b5161fb, < 278484ae93297b1bb1ce755f9d3b6d95a48c7d47. No fix is published. How to fix ↓
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Background
The comedi package is a Linux kernel driver framework for data acquisition and control. It provides a unified interface for various data acquisition devices. One of the drivers included in comedi is vmk80xx, which is responsible for handling communication with VMK-80xx series devices. These devices are used for voltage measurement and control in industrial applications.
Vulnerability Detail
The vmk80xx driver in the comedi package is affected by a transfer-buffer overflow vulnerability. This vulnerability allows an attacker to overwrite adjacent memory locations by sending specially crafted data to the device. The impact of this vulnerability can vary depending on the context in which the driver is used. In some scenarios, it could lead to privilege escalation or denial of service.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Linux Kernel to the recommended version.
Conclusion
The comedi package's vmk80xx driver is vulnerable to a transfer-buffer overflow issue. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v5.14.18 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Comedi is a Linux kernel driver framework for data acquisition and control. It provides a unified interface for various data acquisition devices.
vmk80xx is a driver included in the comedi package. It is responsible for handling communication with VMK-80xx series devices used for voltage measurement and control in industrial applications.
A transfer-buffer overflow is a type of vulnerability where data sent to a buffer exceeds its allocated size, leading to the overwriting of adjacent memory locations.
The impact of this vulnerability can vary depending on the context in which the driver is used. In some scenarios, it could lead to privilege escalation or denial of service.
To fix this vulnerability, update the Linux Kernel to version v5.14.18 or later, which includes a patch for the vmk80xx driver.
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