net: mscc: ocelot: Avoid Overflowing the PTP Timestamp FIFO
Summary
GSD-2021-1002163: net: mscc: ocelot: avoid overflowing the PTP timestamp FIFO. Affects Kernel versions >= 4e3b0468e6d7f3c38ce52320803769b49ba87930, < 52849bcf0029ccc553be304e4f804938a39112e2. No fix is published. How to fix ↓
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Background
The 'net: mscc: ocelot' package is a part of the Linux Kernel ecosystem. It provides support for the Ocelot Ethernet switch from Microsemi. The Ocelot switch is commonly used in networking applications and is responsible for managing network traffic. This vulnerability specifically affects the PTP (Precision Time Protocol) timestamp FIFO in the Ocelot switch.
Vulnerability Detail
The vulnerability in the 'net: mscc: ocelot' package allows for potential overflowing of the PTP timestamp FIFO. This can lead to various security issues, although the exact impact and attack plausibility have not been proven yet. The vulnerability was introduced in version v5.4 of the Linux Kernel and has been fixed in version v5.15. The fix prevents the overflow and ensures the proper functioning of the PTP timestamp FIFO.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15 or later. This can be done by pulling the latest changes from the official Linux Kernel repository using the following command:
$ git pull https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
After updating the Kernel, recompile and reinstall it on the affected system.
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Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to apply the fix by updating the Linux Kernel to the latest version.
Conclusion
The 'net: mscc: ocelot' package in the Linux Kernel is vulnerable to potential overflowing of the PTP timestamp FIFO. To mitigate this vulnerability, it is crucial to update the Kernel to version v5.15 or later. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The 'net: mscc: ocelot' package is a component of the Linux Kernel ecosystem that provides support for the Ocelot Ethernet switch from Microsemi.
The impact of the PTP timestamp FIFO overflow is not yet proven, but it can potentially lead to security vulnerabilities in the affected system.
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 in real-time.
Yes, the vulnerability has been fixed in version v5.15 of the Linux Kernel. It is recommended to update the Kernel to this version or later.
You can find more information about this vulnerability in the GSD-2021-1002163 JSON file available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002163.json
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