Refcount Leak in ipmi_ipmb_probe in Kernel
Summary
GSD-2022-1002679: ipmi:ipmb: Fix refcount leak in ipmi_ipmb_probe. Affects Kernel versions >= 00d93611f00219bd142aa119c5121793cac30ff0, < f22068357acc268148bd55ce77f0a3e5c86701b4. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages communication between hardware and software. It provides essential functionalities and services to ensure the proper functioning of the system. The ipmi_ipmb_probe module is responsible for handling IPMB (Intelligent Platform Management Bus) messages in the IPMI (Intelligent Platform Management Interface) subsystem. IPMI allows remote management and monitoring of computer systems. However, a vulnerability has been identified in the ipmi_ipmb_probe module that can lead to a refcount leak.
Vulnerability Detail
The refcount leak vulnerability in ipmi_ipmb_probe arises due to improper handling of reference counts in certain scenarios. An attacker could exploit this vulnerability to cause a denial-of-service condition or potentially execute arbitrary code with elevated privileges. The vulnerability was introduced in version v5.18 of the Linux Kernel and was fixed in version v5.18.3 by commit f22068357acc268148bd55ce77f0a3e5c86701b4. It is important to note that the impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
The refcount leak vulnerability in ipmi_ipmb_probe module of the Kernel can have serious security implications, potentially leading to denial-of-service or arbitrary code execution. It is crucial to update the Kernel to version v5.18.3 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a critical component of the Linux operating system that acts as a bridge between hardware and software, providing essential functionalities and services.
The ipmi_ipmb_probe module is responsible for handling IPMB (Intelligent Platform Management Bus) messages in the IPMI (Intelligent Platform Management Interface) subsystem, allowing remote management and monitoring of computer systems.
A refcount leak vulnerability occurs when reference counts, which track the number of references to a resource, are not properly managed. This can lead to resource leaks, denial-of-service conditions, or potential code execution vulnerabilities.
The potential impacts of this vulnerability include denial-of-service conditions and potential execution of arbitrary code with elevated privileges.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.18.3 or later by obtaining the updated Kernel source code and compiling it.
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