Memory Leak in uss720_probe in Kernel
Summary
GSD-2021-1000664: misc/uss720: fix memory leak in uss720_probe. Affects Kernel versions >= 0f36163d3abefbda1b21a330b3fdf3c2dc076d94, < 386918878ce4cd676e4607233866e03c9399a46a. 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 provides an interface for applications to interact with the hardware. It is responsible for tasks such as process management, memory management, and device drivers. The uss720_probe function in the Kernel is used to initialize and probe the USS720 USB serial driver. This driver allows communication with USS720 USB devices. However, a memory leak vulnerability has been discovered in the uss720_probe function, which could lead to the exhaustion of system memory over time.
Vulnerability Detail
The memory leak vulnerability in the uss720_probe function allows an attacker to continuously allocate memory without freeing it, leading to a gradual depletion of available system memory. This can result in system instability, performance degradation, and ultimately, denial of service. The vulnerability was introduced in version v2.6.14 of the Linux Kernel and has been fixed in version v4.19.193. 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 available for this vulnerability. However, as a general best practice, it is recommended to regularly update the Linux Kernel to the latest stable version to ensure the inclusion of security patches and bug fixes.
Conclusion
In conclusion, the memory leak vulnerability in the uss720_probe function of the Kernel can lead to system instability and denial of service. It is crucial to update the Linux Kernel to version v4.19.193 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The memory leak vulnerability in uss720_probe can lead to system instability, performance degradation, and denial of service due to the gradual depletion of available system memory.
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 and the Vulert Playground will analyze it for open-source vulnerabilities, including this memory leak vulnerability.
There is no evidence of this vulnerability being exploited in the wild at the moment. However, it is still important to apply the necessary security updates to protect against potential future attacks.
The primary mitigation for this vulnerability is to update the Linux Kernel to version v4.19.193 or later. Regularly updating the Kernel to the latest stable version is also recommended to stay protected against other security vulnerabilities and bugs.
The discovery of this vulnerability was automated and reported by the Cloud Security Alliance's GSD Database. The actual impact and attack plausibility of the vulnerability have not been proven yet.
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