Use After Free Vulnerability in scsi: mpt3sas Package
Summary
GSD-2022-1001353: scsi: mpt3sas: Fix use after free in _scsih_expander_node_remove(). Affects Kernel versions >= 7d310f241001e090cf1ec0f3ae836b38d8c6ebec, < 17d66b1c92bcb41e72271ec60069d3684aaa1c9c. No fix is published. How to fix ↓
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Background
The scsi: mpt3sas package is a SCSI host bus adapter driver for the MPT Fusion SAS 3.0 device family. It provides support for SAS expanders and is responsible for managing the communication between the host system and SAS devices. The vulnerability identified in this package is a use after free issue in the _scsih_expander_node_remove() function.
Vulnerability Detail
The use after free vulnerability in the _scsih_expander_node_remove() function of the scsi: mpt3sas package allows an attacker to exploit a freed memory region. By manipulating certain parameters, an attacker can trigger the use of the freed memory, leading to potential code execution or a system crash. This vulnerability was introduced in version v5.11 of the Linux Kernel and has been fixed in version v5.16.20.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can avoid the use of the scsi: mpt3sas package or disable the affected functionality until the Linux Kernel is updated to the fixed version.
Conclusion
The use after free vulnerability in the scsi: mpt3sas package can be mitigated by updating the Linux Kernel to version v5.16.20 or later. It is important to apply this fix to prevent potential code execution or system crashes. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially allow an attacker to execute arbitrary code or crash the 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 to the playground and it will provide real-time alerts for open-source vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the recommended fix to mitigate any potential risks.
Yes, you can temporarily disable the affected functionality or avoid using the scsi: mpt3sas package until the Linux Kernel is updated to the fixed version.
For more information about this vulnerability, you can refer to the source link provided in the database_specific section of this report.
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