Vulnerability in virtio_console package: Assure used length from device is limited

Kernel Updated 02 Oct 2025

Summary

03/08/2021
N/A
No i
Unrated
Not published

GSD-2021-1001412: virtio_console: Assure used length from device is limited. Affects Kernel versions < 56cf748562d3cbfd33d1ba2eb4a7603a5e20da88. No fix is published. How to fix ↓

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Background

The virtio_console package is a component of the Linux Kernel ecosystem. It provides a virtual console interface for communication between the host and guest systems in a virtualized environment. This package allows the exchange of data and commands between the host and guest systems. However, a vulnerability has been identified in the package that could potentially lead to security issues.

Vulnerability Detail

The vulnerability in the virtio_console package arises from the lack of proper limitation on the used length from the device. This means that an attacker could potentially send excessive data to the device, causing a buffer overflow or other memory-related issues. If successfully exploited, this vulnerability could lead to arbitrary code execution or denial of service attacks. It is important to note that 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

There is no specific workaround mentioned for this vulnerability. It is advised to apply the fix by updating the Linux Kernel to the recommended version.

Conclusion

In conclusion, the virtio_console package in the Linux Kernel is vulnerable to an issue where the used length from the device is not properly limited. This vulnerability could potentially lead to arbitrary code execution or denial of service attacks. It is crucial to update the Linux Kernel to version v4.14.240 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

The virtio_console package is a component of the Linux Kernel ecosystem that provides a virtual console interface for communication between the host and guest systems in a virtualized environment.

If successfully exploited, this vulnerability could lead to arbitrary code execution or denial of service attacks.

No, the impact and attack plausibility of this vulnerability have not been proven yet.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.240 or later.

There is no specific workaround mentioned for this vulnerability. It is advised to apply the fix by updating the Linux Kernel to the recommended version.

Related vulnerabilities

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How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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