Use-after-free error during reset in Kernel
Summary
GSD-2021-1001155: igc: Fix use-after-free error during reset. Affects Kernel versions >= 13b5b7fd6a4a96dffe604f25e7b64cfbd9520924, < ea5e36b7367ea0a36ef73a163768f16d2977bd83. 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. However, a vulnerability has been discovered in the Kernel that can lead to a use-after-free error during reset.
Vulnerability Detail
The use-after-free error occurs when a program continues to use a memory address after it has been freed. In the case of this vulnerability, it happens during the reset process in the Kernel. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The vulnerability was introduced in version v4.20 of the Kernel and has been fixed in version v5.13.6.
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. Updating to the fixed version is the recommended solution.
Conclusion
The use-after-free error during reset vulnerability in the Kernel can have serious security implications. It is crucial to update the Kernel to the fixed version v5.13.6 or later to mitigate the risk of exploitation. For further support and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition on a system running the affected version of the Kernel.
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 the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
It is highly recommended to update the Kernel to the fixed version rather than attempting to manually patch the vulnerability. Updating the Kernel ensures that all necessary security patches and fixes are applied correctly.
You can find more information about this vulnerability in the Open Source Vulnerability Database (OSVDB) entry GSD-2021-1001155 at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001155.json.
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