Vulnerability in dm verity: fix require_signatures module_param permissions
Summary
GSD-2021-1000943: dm verity: fix require_signatures module_param permissions. Affects Kernel versions < 90547d5db50bcb2705709e420e0af51535109113. No fix is published. How to fix ↓
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Background
The dm verity package is a component of the Linux Kernel ecosystem. It provides integrity checking for block devices, ensuring that data has not been tampered with. The require_signatures module_param in dm verity is used to enforce the requirement for signed data blocks. However, there is a vulnerability in the module_param permissions that could potentially allow unauthorized access to this parameter.
Vulnerability Detail
The vulnerability in dm verity's require_signatures module_param permissions could be exploited by an attacker to modify the requirement for signed data blocks. This could lead to the acceptance of unsigned or tampered data, compromising the integrity of the system. The impact of this vulnerability depends on the specific usage of dm verity and the importance of data integrity in the affected system.
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
In conclusion, the vulnerability in dm verity's require_signatures module_param permissions could potentially compromise the integrity of the system by allowing the acceptance of unsigned or tampered data. It is recommended to update the Linux Kernel to version v5.10.44 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
dm verity is a component of the Linux Kernel that provides integrity checking for block devices, ensuring data integrity.
The require_signatures module_param is used to enforce the requirement for signed data blocks in dm verity.
The impact of this vulnerability depends on the specific usage of dm verity and the importance of data integrity in the affected system. It could potentially compromise the integrity of the system by allowing the acceptance of unsigned or tampered data.
To fix this vulnerability, update the Linux Kernel to version v5.10.44 or later, which includes the necessary fix for the require_signatures module_param permissions.
There is no specific workaround mentioned for this vulnerability.
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