Double Free Vulnerability in HID: elan
Summary
GSD-2022-1003637: HID: elan: Fix potential double free in elan_input_configured. Affects Kernel versions >= b7429ea53d6c0936a0f10a5d64164f0aea440143, < 6d0726725c7c560495f5ff364862a2cefea542e3. No fix is published. How to fix ↓
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Background
The HID: elan package is a component of the Linux Kernel, which is responsible for handling input devices. It provides support for Elan touchpads, enabling users to interact with their devices through touch gestures. However, a vulnerability has been discovered in the elan_input_configured function, which could lead to a double free issue. This vulnerability was introduced in version v5.9 of the Linux Kernel and has been fixed in version v5.10.121.
Vulnerability Detail
The double free vulnerability in elan_input_configured can potentially be exploited by an attacker to execute arbitrary code or cause a denial of service. When certain conditions are met, the function may attempt to free a memory region that has already been freed, leading to undefined behavior. This could result in a crash, data corruption, or the execution of malicious code.
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, the HID: elan package in the Linux Kernel is vulnerable to a double free issue in the elan_input_configured function. This vulnerability can potentially be exploited to execute arbitrary code or cause a denial of service. It is crucial to update the Linux Kernel to version v5.10.121 or later to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can vary depending on the specific conditions and the attacker's capabilities. It could potentially lead to a system crash, data corruption, or the execution of arbitrary code.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit publicly available for this vulnerability. However, it is always recommended to apply security updates promptly to mitigate any potential risks.
The recommended solution is to update the Linux Kernel to the fixed version. However, if updating is not feasible in the short term, you can consider implementing additional security measures, such as restricting access to vulnerable systems or using intrusion detection systems to monitor for any potential exploitation attempts.
For more information about this vulnerability, you can refer to the vulnerability details in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003637.json
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