Vulnerability in Kernel - irqchip/gic-v3-its
Summary
GSD-2021-1001542: irqchip/gic-v3-its: Fix potential VPE leak on error. Affects Kernel versions >= 7d75bbb4bc1ad90386776459d37e4ddfe605671e, < 7d39992d45acd6f2d6b2f62389c55b61fb3d486b. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages the communication between hardware and software. It provides essential functions and services to ensure the proper functioning of the system. The irqchip/gic-v3-its module is responsible for handling interrupts in systems that use the GICv3 architecture. It allows devices to request and receive interrupts from the system. However, a vulnerability has been discovered in this module that could potentially lead to a Virtual Processor Entity (VPE) leak on error.
Vulnerability Detail
The vulnerability in irqchip/gic-v3-its module could result in a VPE leak when an error occurs. This means that under certain circumstances, the module may fail to release allocated resources properly, leading to a potential resource exhaustion issue. An attacker could potentially exploit this vulnerability to exhaust system resources, causing a denial-of-service condition. 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
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, a vulnerability has been identified in the Kernel's irqchip/gic-v3-its module that could potentially lead to a VPE leak on error. This vulnerability can be mitigated by updating the Linux Kernel to version v4.14.249 or later. It is important to stay vigilant and apply security patches and updates to ensure the integrity and security of your system. For further support or assistance in vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability could potentially lead to a denial-of-service condition, as an attacker could exploit the vulnerability to exhaust system resources.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it in real-time to identify any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate any potential risks.
The recommended solution is to update the Linux Kernel to the latest version. However, if updating is not feasible in your environment, you can consider implementing additional security measures, such as network segmentation and access controls, to reduce the risk of exploitation.
You can find more information about this vulnerability in the GSD database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001542.json.
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