netfilter: nf_tables: disallow non-stateful expression in sets earlier
Summary
GSD-2022-1004093: netfilter: nf_tables: disallow non-stateful expression in sets earlier. Affects Kernel versions >= 0b2d8a7b638b5034d2d68f6add8af94daaa1d4cd, < 94e9b75919619ba8c4072abc4917011a7a888a79. No fix is published. How to fix ↓
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Background
The vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the operating system that manages system resources and provides an interface for software to interact with hardware. The nf_tables module in the Kernel is responsible for packet filtering and network address translation. This vulnerability specifically relates to the handling of non-stateful expressions in sets within nf_tables.
Vulnerability Detail
The vulnerability allows non-stateful expressions to be used in sets within nf_tables, which can lead to potential security issues. By disallowing non-stateful expressions in sets earlier, the impact of this vulnerability can be mitigated. The vulnerability was introduced in version v4.1 of the Linux Kernel and has been fixed in version v4.9.318.
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
The netfilter: nf_tables vulnerability in the Kernel package can potentially lead to security breaches. It is recommended to update the Linux Kernel to version v4.9.318 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 not yet proven, but it has the potential to be exploited for security breaches.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will provide real-time alerts for open-source vulnerabilities.
Yes, the vulnerability has been fixed in version v4.9.318 of the Linux Kernel. It is recommended to update to this version or later.
There are no specific temporary measures mentioned for this vulnerability.
You can refer to the GitHub repository of the Cloud Security Alliance's GSD database for more details (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004093.json).
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