Vulnerability in xen/netfront package: destroy queues before real_num_tx_queues is zeroed
Summary
GSD-2022-1000877: xen/netfront: destroy queues before real_num_tx_queues is zeroed. Affects Kernel versions >= a5d8e6189b134f5db61be5cd59cf5a74bb01edc7, < b40c912624775a21da32d1105e158db5f6d0554a. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The xen/netfront package is a component of the Linux Kernel that provides network front-end drivers for Xen virtualization. It allows virtual machines to communicate with the physical network interface. The package is responsible for managing queues for transmitting and receiving network packets. However, a vulnerability has been discovered in the package that involves the destruction of queues before the real_num_tx_queues variable is zeroed.
Vulnerability Detail
The vulnerability in xen/netfront occurs when queues are destroyed before real_num_tx_queues is zeroed. This can lead to various security issues, although the exact impact and attack plausibility have not been proven. Attackers may potentially exploit this vulnerability to cause denial-of-service (DoS) attacks, bypass security measures, or execute arbitrary code. The vulnerability was introduced in version v5.4.174 of the Linux Kernel and has been fixed in version v5.4.183.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. It is advised to apply the fix by updating the Linux Kernel to the recommended version.
Conclusion
In conclusion, the xen/netfront package in the Linux Kernel is vulnerable to a flaw where queues are destroyed before real_num_tx_queues is zeroed. This vulnerability can potentially lead to various security issues. It is recommended to update the Linux Kernel to version v5.4.183 or later to mitigate the vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability is not yet proven, but it could potentially lead to DoS attacks, security bypasses, or arbitrary code execution.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. It analyzes your manifest file, such as package-lock.json, and provides real-time alerts for open-source vulnerabilities.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
The Linux Kernel is the core component of the Linux operating system. It provides essential functionality and acts as an interface between the hardware and software layers of the system.
You can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000877.json) for more information.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
