Vulnerability in Kernel: bpf, sockmap - Ignoring orig_len Parameter
Summary
GSD-2022-1000703: bpf, sockmap: Do not ignore orig_len parameter. Affects Kernel versions >= ef5659280eb13e8ac31c296f58cfdfa1684ac06b, < 518f8a21ce73755254165729ce3272f8504a69b7. 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 such as process management, memory management, and device drivers. The bpf (Berkeley Packet Filter) and sockmap are subsystems within the Kernel that handle network packet filtering and socket mapping, respectively. These subsystems play a crucial role in network communication and security.
Vulnerability Detail
The bpf and sockmap subsystems in the Kernel have a vulnerability that allows the orig_len parameter to be ignored. This vulnerability was introduced in version v5.10 of the Linux Kernel by commit ef5659280eb13e8ac31c296f58cfdfa1684ac06b and affects all subsequent versions until v5.16.13. The impact and attack plausibility of this vulnerability have not been proven yet. However, if exploited, it could potentially lead to security breaches, data leaks, or denial-of-service attacks. The orig_len parameter is a crucial parameter that should not be ignored, as it affects the length of data being processed by the bpf and sockmap subsystems.
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. It is advised to apply the fix by updating the Linux Kernel.
Conclusion
The bpf and sockmap vulnerability in the Kernel, which ignores the orig_len parameter, poses potential risks to system security and stability. It is crucial to update the Linux Kernel to version v5.16.13 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, if exploited, it could potentially lead to security breaches, data leaks, or denial-of-service attacks.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities.
Yes, a fix is available in version v5.16.13 of the Linux Kernel. It is recommended to update the Kernel to this version or later.
There are no known exploits for this vulnerability at the moment. However, it is important to apply the fix as a proactive security measure.
There are no specific temporary measures mentioned for this vulnerability. It is advised to update the Kernel as soon as possible.
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