MIPS Kernel: Fix Fortify Panic when Copying ASM Exception Handlers
Summary
GSD-2022-1002194: MIPS: fix fortify panic when copying asm exception handlers. Affects Kernel versions < 0aeaadc52b05b976c587182d234e3f18e8fce389. No fix is published. How to fix ↓
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Background
The MIPS kernel is a component of the Linux operating system that supports the MIPS architecture. It provides the necessary functionality for running programs and managing system resources on MIPS-based devices. The kernel is responsible for handling exceptions, such as hardware faults or software interrupts, and ensuring the proper execution of exception handlers. However, a vulnerability has been discovered in the MIPS kernel that can lead to a fortify panic when copying ASM exception handlers.
Vulnerability Detail
The vulnerability in the MIPS kernel arises when copying ASM exception handlers. This can trigger a fortify panic, which is a security mechanism designed to prevent buffer overflows and other memory-related vulnerabilities. The panic occurs due to an issue in the code that handles the copying of exception handlers, potentially leading to a system crash or unauthorized access to sensitive information. 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.
Conclusion
The MIPS kernel vulnerability, which triggers a fortify panic when copying ASM exception handlers, has been addressed in the Linux Kernel version v5.4.189. Users are advised to update their kernel to the latest version to mitigate the risk of system crashes or unauthorized access to sensitive information. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it could potentially lead to a system crash or unauthorized access to sensitive information.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
Yes, a patch has been released in the Linux Kernel version v5.4.189. Users should update their kernel to the latest version that includes this patch to fix the vulnerability.
The remote exploitability of this vulnerability has not been determined yet. However, it is always recommended to apply security patches and updates to mitigate any potential risks.
You can find more information about this vulnerability in the GSD-2022-1002194 JSON file available on the GitHub repository of the Cloud Security Alliance's GSD Database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002194.json).
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