Vulnerability in Kernel: irqchip/gic-v3-its
Summary
UVI-2021-1001570: irqchip/gic-v3-its: Fix potential VPE leak on error. Affects Kernel versions >= 7d75bbb4bc1ad90386776459d37e4ddfe605671e, < 5701e8bff314c155e7afdc467b1e0389d86853d0. 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 system resources and facilitates communication between hardware and software. It provides essential functionalities for the proper functioning of the system. The irqchip/gic-v3-its package is responsible for handling interrupts in systems that use the GICv3 architecture. It ensures proper distribution and handling of interrupts across multiple virtual processors (VPEs).
Vulnerability Detail
The vulnerability identified in irqchip/gic-v3-its can potentially lead to a Virtual Processor Entity (VPE) leak when an error occurs. This leak can result in resource exhaustion and instability of the system. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) attack or gain unauthorized access to sensitive information. The vulnerability was introduced in version v4.14 of the Linux Kernel and has been fixed in version v4.19.209.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The vulnerability in irqchip/gic-v3-its can lead to a Virtual Processor Entity (VPE) leak, potentially causing resource exhaustion and system instability. It is crucial to update the Linux Kernel to version v4.19.209 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to resource exhaustion and system instability, potentially enabling denial-of-service attacks or unauthorized access to sensitive information.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
No, only versions starting from v4.14 up to v4.19.208 are affected. The vulnerability has been fixed in version v4.19.209.
You can find more information about this vulnerability in the vulnerability database maintained by the Cloud Security Alliance. Visit the following link: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/UVI-2021-1001570.json
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