CVE-2024-26830: Linux kernel: i40e: Do not allow untrusted VF to remove administratively set MAC
Summary
CVE-2024-26830: In the Linux kernel, the following vulnerability has been resolved: i40e: Do not allow untrusted VF to remove administratively set MAC Currently when PF administratively sets VF's MAC address and the VF is put down (VF t... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The linux-libc-dev package is a development package that provides the necessary header files and libraries for compiling C programs against the Linux kernel. It is an essential component for building and running applications on Linux systems. This package is vulnerable to a specific issue in the i40e driver of the Linux kernel.
Vulnerability Detail
The vulnerability (CVE-2024-26830) in the i40e driver of the Linux kernel allows an untrusted Virtual Function (VF) to remove a MAC address that has been administratively set by the Physical Function (PF). When the PF sets the MAC address for a VF and the VF is subsequently put down, the MAC address is removed from MAC filters and the primary VF MAC is zeroed. However, this vulnerability allows an untrusted VF to remove the primary MAC address even if it was set administratively by the PF. This can lead to potential security issues and disruption of network connectivity.
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. However, as a general best practice, it is recommended to implement strict access controls and monitoring mechanisms to mitigate the risk of untrusted VFs attempting to exploit this vulnerability.
Conclusion
The linux-libc-dev package is vulnerable to CVE-2024-26830, which allows untrusted VFs to remove administratively set MAC addresses. It is important to update the package to a patched version and regularly apply security updates to ensure the system is protected. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The linux-libc-dev package provides header files and libraries for compiling C programs against the Linux kernel. It is an essential component for building and running applications on Linux systems.
The i40e driver is a network driver for Intel Ethernet 700 Series devices. It provides support for managing Virtual Functions (VFs) and their associated MAC addresses.
This vulnerability allows an untrusted VF to remove the administratively set MAC address, which can disrupt network connectivity and potentially lead to security issues.
Yes, it is recommended to update the linux-libc-dev package to a version that includes the patch for this vulnerability.
Implementing strict access controls and monitoring mechanisms can help mitigate the risk of untrusted VFs attempting to exploit this vulnerability.
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