Vulnerability in Kernel package: dell-smbios-wmi
Summary
UVI-2021-1000496: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios. Affects Kernel versions >= 1a258e670434f404a4500b65ba1afea2c2b29bba, < 8d746ea7c687bab060a2c05a35c449302406cd52. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system. It provides the core functionality and interfaces for various hardware and software components. One of the modules within the Kernel package is dell-smbios-wmi, which is responsible for handling Dell system management functions through the Windows Management Instrumentation (WMI) interface. This module allows users to interact with Dell-specific features and retrieve system information. However, a vulnerability has been discovered in dell-smbios-wmi that can lead to a system crash when unloading the module.
Vulnerability Detail
The vulnerability in dell-smbios-wmi occurs when attempting to remove (rmmod) the module from the system. Due to a coding error, an oops (kernel panic) can be triggered, resulting in a system crash. This vulnerability can be exploited by an attacker with local access to the system, potentially leading to a denial-of-service (DoS) situation. 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
No workaround has been provided for this vulnerability.
Conclusion
In conclusion, the Kernel package's dell-smbios-wmi module is vulnerable to a coding error that can lead to a system crash when attempting to remove the module. It is crucial to update the Linux Kernel package to version v5.12.7 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The vulnerability can lead to a system crash (kernel panic) when attempting to remove the dell-smbios-wmi module, potentially resulting in a denial-of-service (DoS) situation.
An attacker with local access to the system can potentially exploit this vulnerability.
Remote exploitation of this vulnerability has not been proven yet. However, it is always recommended to keep systems updated to mitigate potential risks.
Yes, the vulnerability has been fixed in Linux Kernel version v5.12.7 by commit 8d746ea7c687bab060a2c05a35c449302406cd52.
For more details about this vulnerability, you can refer to the source information provided by the Cloud Security Alliance's GSD Database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/UVI-2021-1000496.json
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