Double Free Vulnerability in HID: elan
Summary
GSD-2022-1003923: HID: elan: Fix potential double free in elan_input_configured. Affects Kernel versions >= 4023bad0a528d383800a2262c899f52dcd613c7c, < c92ec22a991778a096342cf1a917ae36c5c86a90. 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 includes drivers for various touchpads, including those manufactured by Elan. These drivers enable the proper functioning of Elan touchpads on Linux-based systems. However, a vulnerability has been discovered in the elan_input_configured function of the HID: elan package, which could lead to a double free issue.
Vulnerability Detail
The double free vulnerability in the elan_input_configured function of the HID: elan package allows an attacker to potentially exploit a memory management flaw. By sending specially crafted input to the affected system, an attacker could trigger the double free condition, leading to undefined behavior or a system crash. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability was introduced in version v4.19.146 of the Linux Kernel and has been fixed in version v4.19.247.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fix by updating the Linux Kernel to the patched version.
Conclusion
The double free vulnerability in the HID: elan package of the Linux Kernel can potentially lead to system crashes or undefined behavior. It is crucial to update the Linux Kernel to version v4.19.247 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown. While it has the potential to lead to system crashes or undefined behavior, no specific attack scenario or exploit has been proven yet.
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 for any known vulnerabilities, including this double free issue.
No, there is currently no known exploit for this vulnerability. However, it is still important to apply the provided fix to mitigate any potential risks.
The remote exploitability of this vulnerability has not been determined yet. Further analysis is required to assess the potential for remote exploitation.
No, the only recommended solution is to update the Linux Kernel to the patched version. Applying the fix provided by the official Linux Kernel repository is the most effective way to address this vulnerability.
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