Vulnerability in virtio_console package: Assure used length from device is limited
Summary
UVI-2021-1001476: virtio_console: Assure used length from device is limited. Affects Kernel versions < 187f14fb88a9e62d55924748a274816fe6f34de6. 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 discovered in the package that could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the virtio_console package arises from a lack of limitation on the used length of data received from the device. This could allow an attacker to send excessive data, leading to buffer overflows or other memory-related vulnerabilities. Exploiting this vulnerability could result in arbitrary code execution or denial of service attacks. The vulnerability has been identified and fixed in the Linux Kernel version v4.4.276 by commit 187f14fb88a9e62d55924748a274816fe6f34de6.
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.
Conclusion
The virtio_console package in the Linux Kernel is vulnerable to a security issue related to the lack of limitation on the used length of data received from the device. This vulnerability can be fixed by updating the Linux Kernel to version v4.4.276 or later. Users can also use the Vulert Playground to check if their application is affected by 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.
This vulnerability could allow an attacker to send excessive data, leading to buffer overflows or other memory-related vulnerabilities. Exploiting this vulnerability could result in arbitrary code execution or denial of service attacks.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.4.276 or later. This can be done by obtaining the updated kernel source code from the official Linux Kernel repository and compiling it for the target system.
No specific workaround has been mentioned for this vulnerability.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. It does not require access to the code or installation.
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