Vulnerability in Linux Kernel: MIPS: fix fortify panic when copying asm exception handlers
Summary
GSD-2022-1001390: MIPS: fix fortify panic when copying asm exception handlers. Affects Kernel versions < 3c6c4d4ac8b17adc7db797bf4b25ef22abc2dd1c. No fix is published. How to fix ↓
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Background
The Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for numerous Linux distributions. It provides essential functionality for managing system resources, facilitating communication between hardware and software components, and enabling the execution of user programs. The MIPS architecture is a popular instruction set architecture used in various embedded systems and networking devices. This vulnerability specifically affects the MIPS architecture in the Linux Kernel.
Vulnerability Detail
The identified vulnerability in the Linux Kernel's MIPS architecture involves a fortify panic when copying asm exception handlers. This vulnerability could potentially be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The issue arises due to a flaw in the handling of exception handlers during the copying process. An attacker may be able to trigger this vulnerability by crafting a malicious input that triggers an exception, leading to the panic condition. Successful exploitation of this vulnerability could result in system instability or unauthorized access to sensitive information.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability. It is advised to apply the fix provided by the Linux Kernel developers as soon as possible.
Conclusion
The identified vulnerability in the Linux Kernel's MIPS architecture poses a potential risk of denial-of-service (DoS) attacks and unauthorized code execution. It is crucial to update to the fixed version of the Linux Kernel (v5.16.20 or later) to mitigate these risks. No specific workaround has been mentioned, so applying the fix is the recommended course of action. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability could potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with elevated privileges. It may result in system instability 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 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.
There are no known instances of this vulnerability being exploited in the wild at the time of this report. However, it is crucial to apply the fix promptly to mitigate any potential risks.
Yes, this vulnerability can be exploited remotely if the affected system is accessible over a network. An attacker could craft a malicious input to trigger the vulnerability remotely.
For more details about this vulnerability, including technical specifics and the fix implementation, please refer to the provided references link in the vulnerability details section.
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