Vulnerability in Kernel package: scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
Summary
GSD-2022-1003756: scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac(). Affects Kernel versions >= 85b4aa4926a50210b683ac89326e338e7d131211, < ffd3bed66b54d78c5140d8a19a83c7647208a882. 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
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functions and providing an interface between hardware and software. It includes various subsystems, such as the scsi (Small Computer System Interface) and fcoe (Fibre Channel over Ethernet) modules. The scsi module enables communication with storage devices, while the fcoe module allows Fibre Channel traffic to be encapsulated within Ethernet frames. However, a vulnerability has been identified in the fcoe module that could lead to potential security issues.
Vulnerability Detail
The vulnerability in the fcoe module, specifically in the fcoe_wwn_from_mac() function, is related to a potential Wstringop-overflow. This vulnerability was introduced in version v2.6.29 of the Linux Kernel by commit 85b4aa4926a50210b683ac89326e338e7d131211 and affects all subsequent versions until it was fixed in v5.4.198 by commit ffd3bed66b54d78c5140d8a19a83c7647208a882. The Wstringop-overflow warnings indicate a potential buffer overflow issue when manipulating wide strings, which could be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. It is important to note that the actual impact and attack plausibility have not yet been proven.
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
As a workaround, if updating the Kernel package is not immediately feasible, it is recommended to disable the fcoe module or restrict access to the vulnerable function fcoe_wwn_from_mac(). This can be achieved by blacklisting the fcoe module or using access control mechanisms to prevent unauthorized access to the vulnerable function.
Conclusion
In conclusion, a vulnerability has been identified in the fcoe module of the Kernel package, which could potentially lead to security issues. It is crucial to update the Kernel package to version v5.4.198 or later to mitigate this vulnerability. Alternatively, disabling the fcoe module or restricting access to the vulnerable function can serve as a temporary workaround. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The Kernel package is a crucial component of the Linux operating system, responsible for managing core functions and providing an interface between hardware and software.
The scsi (Small Computer System Interface) module enables communication with storage devices in the Linux Kernel.
The fcoe (Fibre Channel over Ethernet) module in the Linux Kernel allows Fibre Channel traffic to be encapsulated within Ethernet frames.
A Wstringop-overflow is a warning indicating a potential buffer overflow issue when manipulating wide strings, which could be exploited by attackers.
To update the Linux Kernel package, you can follow the update instructions provided by your Linux distribution or manually compile and install the updated Kernel version.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
