General Protection Fault in legacy_parse_param in Linux Kernel
Summary
GSD-2022-1001800: LSM: general protection fault in legacy_parse_param. Affects Kernel versions < f3f93a1aaafc3032e0a9655fb43deccfb3e953a3. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. It is a critical piece of software that enables the functioning of various devices and services on Linux-based systems. The legacy_parse_param function is a part of the Linux Security Modules (LSM) framework, which provides a mechanism for implementing security policies in the kernel. This vulnerability specifically affects the legacy_parse_param function within LSM.
Vulnerability Detail
The vulnerability, identified as GSD-2022-1001800, is a general protection fault in the legacy_parse_param function of the Linux Kernel's LSM framework. A general protection fault occurs when a process attempts to access a protected memory region or perform an invalid operation. This vulnerability could potentially be exploited by an attacker to crash the system or execute arbitrary code with elevated privileges. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.15.33 by commit f3f93a1aaafc3032e0a9655fb43deccfb3e953a3.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, the general protection fault vulnerability in the legacy_parse_param function of the Linux Kernel's LSM framework could potentially lead to system crashes or unauthorized code execution. It is crucial to update the Linux Kernel to version v5.15.33 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, if successfully exploited, it could lead to a system crash or unauthorized execution of arbitrary code with elevated privileges.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze the dependencies and alert you if any open-source vulnerabilities, including this one, are found.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the patched version as mentioned in the 'How to Fix' section.
There are no known exploits for this vulnerability at the moment. However, it is always advisable to apply security patches promptly to mitigate potential risks.
You can find more information about this vulnerability, including the fix commit, in the GSD-2022-1001800 entry of the GSD Database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001800.json).
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