Use-after-free vulnerability in net: ethernet package
Summary
GSD-2021-1001072: net: ethernet: fix potential use-after-free in ec_bhf_remove. Affects Kernel versions >= 6af55ff52b02d492d45db88df3e461fa51a6f753, < d11d79e52ba080ee567cb7d7eb42a5ade60a8130. No fix is published. How to fix ↓
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Background
The net: ethernet package is a component of the Linux Kernel, which is responsible for handling Ethernet network interfaces. It provides the necessary functionality for network communication over Ethernet connections. The package is widely used in Linux-based systems and is critical for network connectivity.
Vulnerability Detail
The identified vulnerability in the net: ethernet package is a potential use-after-free issue in the ec_bhf_remove function. This vulnerability was introduced in version v3.15 of the Linux Kernel and affects all subsequent versions until v5.12.13. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service by manipulating the network interface. 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
No workaround has been provided for this vulnerability.
Conclusion
The use-after-free vulnerability in the net: ethernet package of the Linux Kernel poses a potential security risk. It is crucial to update the Kernel to version v5.12.13 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The net: ethernet package is a component of the Linux Kernel that handles Ethernet network interfaces and facilitates network communication over Ethernet connections.
A use-after-free vulnerability occurs when a program continues to reference memory after it has been freed. This can lead to unpredictable behavior and potential security issues.
The impact of this vulnerability could range from arbitrary code execution to denial-of-service attacks, depending on how it is exploited.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.12.13 or later, which includes the necessary fix for the use-after-free issue.
No workaround has been provided for this vulnerability. Updating the Kernel to the fixed version is the recommended solution.
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