Vulnerability in Kernel package: scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe
Summary
GSD-2022-1000231: scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe. Affects Kernel versions >= d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2, < ec4334152dae175dbd8fd5bde1d2139bbe7b42d0. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for various hardware devices, including storage devices. The scsi subsystem within the Kernel package handles communication with SCSI (Small Computer System Interface) devices. The bnx2fc driver is responsible for supporting Broadcom NetXtreme II Fibre Channel over Ethernet (FCoE) adapters. These adapters enable the transmission of SCSI commands over Ethernet networks.
The vulnerability identified in the bnx2fc driver affects the function bnx2fc_recv_frame(). This function is responsible for receiving and processing frames from the network. The vulnerability arises due to a lack of proper synchronization mechanisms in the function, potentially leading to race conditions and other concurrency-related issues.
Vulnerability Detail
The vulnerability in the bnx2fc driver's bnx2fc_recv_frame() function can be exploited by an attacker to trigger race conditions and other concurrency-related issues. By carefully manipulating the timing and order of network frames, an attacker may be able to cause memory corruption, data leakage, or denial-of-service conditions. The impact and attack plausibility of this vulnerability have not been proven yet, but it is crucial to address it to ensure the security and stability of systems running the affected Kernel package.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no specific workaround mentioned for this vulnerability, it is advised to follow the recommended fix by updating the Kernel package to the latest version.
Conclusion
The vulnerability in the bnx2fc driver's bnx2fc_recv_frame() function poses potential risks of memory corruption, data leakage, or denial-of-service conditions. To mitigate these risks, it is crucial to update the Linux Kernel package to version v5.10.99 or later, which includes the necessary fix. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability can potentially include memory corruption, data leakage, or denial-of-service conditions. However, the actual impact and attack plausibility have not been proven yet.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation. Simply upload your package-lock.json file to the playground and it will provide information on any vulnerabilities detected.
Yes, a patch for this vulnerability is available in the Linux Kernel version v5.10.99. It is recommended to update the Kernel package to this version or later to apply the fix.
At the time of this report, there are no known exploits for this vulnerability. However, it is important to address the vulnerability promptly by applying the recommended fix to mitigate any potential risks.
You can find more information about this vulnerability in the GSD-2022-1000231 entry of the GSD database maintained by the Cloud Security Alliance. The entry provides details on the vulnerability, including its introduction commit and the fix commit in the Linux Kernel repository.
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