netfilter: ipset: Fix oversized kvmalloc() calls
Summary
UVI-2021-1001558: netfilter: ipset: Fix oversized kvmalloc() calls. Affects Kernel versions < c4bc456cb5b028e6a2a63e5d54b9f08e827c0504. No fix is published. How to fix ↓
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Background
The netfilter package is a part of the Linux Kernel ecosystem and provides a framework for packet filtering and network address translation. It includes various modules, such as ipset, which allows the creation and management of large sets of IP addresses, networks, and ports. The ipset module is susceptible to a vulnerability that involves oversized kvmalloc() calls.
Vulnerability Detail
The vulnerability in the ipset module arises from the usage of oversized kvmalloc() calls. This can lead to memory allocation failures and potential security issues. Although the impact and attack plausibility have not been proven, it is crucial to address this vulnerability to ensure the stability and security of the system. The vulnerability has been fixed in Linux Kernel version v4.19.209 by commit c4bc456cb5b028e6a2a63e5d54b9f08e827c0504.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The netfilter ipset module is vulnerable to oversized kvmalloc() calls, which can lead to memory allocation failures and potential security issues. It is crucial to update the Linux Kernel to version v4.19.209 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The netfilter package is a part of the Linux Kernel ecosystem and provides a framework for packet filtering and network address translation.
The ipset module is a component of the netfilter package that allows the creation and management of large sets of IP addresses, networks, and ports.
The impact of this vulnerability is not yet proven, but it has the potential to cause memory allocation failures and security issues.
To fix this vulnerability, update the Linux Kernel to version v4.19.209 or later and follow best practices for system security.
For more information about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details.
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