Out-of-Bounds Array Access Vulnerability in OpenIPMI: Denial of Service and Potential Authentication Bypass
Summary
DEBIAN-CVE-2024-42934: OpenIPMI before 2.0.36 has an out-of-bounds array access (for authentication type) in the ipmi_sim simulator, resulting in denial of service or (with very low probability) authentication bypass or code execution. Affects openipmi versions < 2.0.36-1. Fixed in 2.0.36-1. How to fix ↓
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Background
OpenIPMI is an open-source implementation of the Intelligent Platform Management Interface (IPMI) protocol, which is used for managing and monitoring computer hardware. It provides a standardized way to communicate with hardware components, allowing for remote management and monitoring. The package is widely utilized in server environments to ensure system reliability and performance. However, prior to version 2.0.36, OpenIPMI is susceptible to an out-of-bounds array access vulnerability, which can lead to serious security issues.
Vulnerability Detail
The vulnerability in OpenIPMI arises from an out-of-bounds array access in the ipmi_sim simulator, specifically related to the authentication type. This flaw can result in a denial of service, where the system becomes unresponsive, or in rare cases, it may allow an attacker to bypass authentication or execute arbitrary code. The vulnerability is introduced in all versions prior to 2.0.36, making it critical for users of the software to address this issue promptly.
How To Fix
Minimum fixed version
2.0.36-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade openipmiTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can disable the ipmi_sim simulator if it is not required for their operations. This can be done by stopping the service or removing the simulator from the configuration, thus mitigating the risk until the package is updated.
Conclusion
The OpenIPMI vulnerability identified as CVE-2024-42934 poses significant risks, including denial of service and potential authentication bypass. Users are urged to update to version 2.0.36-1 or later to mitigate these risks. Regular monitoring and updates are essential for maintaining system security.
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FAQ
OpenIPMI is an open-source implementation of the Intelligent Platform Management Interface (IPMI) protocol, used for managing and monitoring computer hardware.
The vulnerability involves an out-of-bounds array access in the ipmi_sim simulator, which can lead to denial of service or potential authentication bypass.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without any signup.
Failing to address this vulnerability can lead to system downtime due to denial of service, and in rare cases, it may allow unauthorized access to sensitive systems.
It is recommended to regularly check for updates and apply them promptly to ensure that your system is protected against known vulnerabilities.
References
Related vulnerabilities
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