Memory Leak Vulnerability in auxdisplay: lcd2s Package
Summary
GSD-2022-1000766: auxdisplay: lcd2s: Fix memory leak in ->remove(). Affects Kernel versions >= 8c9108d014c5bd0f0da2e3544eb45dc56a6da92b, < 5d53cd33f4253aa4cf02bf7e670b3c6a99674351. No fix is published. How to fix ↓
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Background
The auxdisplay: lcd2s package is a component of the Linux Kernel ecosystem. It provides support for auxiliary displays, specifically for the lcd2s module. This module allows users to connect and control LCD displays through the kernel. The vulnerability in this package is related to a memory leak issue that occurs during the removal of the lcd2s module.
Vulnerability Detail
The vulnerability in the auxdisplay: lcd2s package is caused by a memory leak in the ->remove() function. When the lcd2s module is removed, it fails to properly release allocated memory, leading to a memory leak. This vulnerability can be exploited by an attacker to exhaust system memory resources, potentially causing system instability or denial of service. The vulnerability was introduced in version v5.11 of the Linux Kernel and has been fixed in version v5.15.27.
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 memory leak vulnerability in the auxdisplay: lcd2s package of the Linux Kernel can lead to system instability or denial of service. It is recommended to update the Linux Kernel to version v5.15.27 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability can lead to a memory leak, potentially causing system instability or denial of service.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for open-source vulnerabilities in real-time.
Yes, the vulnerability has been fixed in Linux Kernel version v5.15.27. It is recommended to update to this version or later to mitigate the issue.
The details of remote exploitation have not been provided in the vulnerability report. However, it is important to keep your system up to date to prevent any potential security risks.
You can find more information about this vulnerability in the vulnerability report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000766.json
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