NULL ptr dereference on VSI filter sync in i40e
Summary
GSD-2021-1002260: i40e: Fix NULL ptr dereference on VSI filter sync. Affects Kernel versions >= 41c445ff0f482bb6e6b72dcee9e598e20575f743, < c30162da91327e4cdf7cd03079f096bb3654738c. No fix is published. How to fix ↓
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Background
The i40e package is a network driver for Intel Ethernet 700 Series devices. It is responsible for managing the communication between the Linux kernel and the Intel Ethernet hardware. The VSI (Virtual Station Interface) filter sync is a critical component of the i40e driver that synchronizes the filters applied to the virtual interfaces with the hardware. This vulnerability affects the i40e driver in the Linux Kernel.
Vulnerability Detail
The vulnerability identified as GSD-2021-1002260 is a NULL pointer dereference issue in the i40e driver's VSI filter sync functionality. When processing filter synchronization, a NULL pointer can be dereferenced, leading to a system crash or potential privilege escalation. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability was introduced in version v3.12 of the Linux Kernel and has been fixed in version v5.4.162.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The NULL pointer dereference vulnerability in the i40e driver's VSI filter sync functionality can lead to system crashes or potential privilege escalation. It is crucial to update the Linux Kernel to version v5.4.162 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 can range from a system crash to potential privilege escalation. However, the actual impact and attack plausibility have not been proven yet.
The vulnerability was introduced in version v3.12 of the Linux Kernel. All versions between v3.12 and v5.4.161 (inclusive) are affected.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it for any open-source vulnerabilities, including this one.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
You can find more information about this vulnerability in the GSD-2021-1002260 entry of the GSD database. The link to the specific entry is available in the source field of the database_specific section of this report.
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