Critical Vulnerability in Linux Kernel: CVE-2023-53382 - SMCRv2 Connection Crash
Summary
CVE-2023-53382: In the Linux kernel, the following vulnerability has been resolved: net/smc: Reset connection when trying to use SMCRv2 fails. Affects linux versions < 6.1.37-1. Fixed in 6.1.37-1. 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 Linux kernel is the core component of many operating systems, providing essential services for hardware and software interaction. It supports a variety of functionalities, including process management, memory management, and device control. The kernel is crucial for system stability and performance. This vulnerability specifically affects the kernel's handling of SMCRv2 connections, which are used for efficient communication in high-performance networking environments.
Vulnerability Detail
CVE-2023-53382 is a vulnerability in the Linux kernel that occurs during the use of SMCRv2 with Mellanox ConnectX-4 devices. The issue arises when the connection attempts to switch from SMCRv2 to SMCRv1 after a failure in buffer assignment. The kernel does not properly reset the connection resources, leading to a NULL pointer dereference and a potential crash. This vulnerability can be exploited during the CLC handshake process, resulting in system instability and service disruption.
How To Fix
Minimum fixed version
6.1.37-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. It is recommended to apply the patch as soon as it becomes available to mitigate the risk.
Conclusion
CVE-2023-53382 is a critical vulnerability in the Linux kernel that affects SMCRv2 connections, potentially leading to system crashes. It is essential for users of affected versions to update their systems promptly to mitigate risks. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for linux →
FAQ
CVE-2023-53382 is a vulnerability in the Linux kernel that can cause a crash when using SMCRv2 connections with Mellanox ConnectX-4 devices.
This vulnerability can lead to system crashes and instability, particularly in environments utilizing SMCRv2 for high-performance networking.
You should update your Linux kernel to the patched versions as soon as possible to prevent potential crashes and system instability.
Yes, you can use Vulert to monitor and alert for open-source vulnerabilities in your software. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
Detailed information about CVE-2023-53382 can be found in the official CVE database and security advisories related to the Linux kernel.
Related vulnerabilities
Recent vulnerabilities recorded for linux.
