Moderate Vulnerability in FreeIPMI Packages: Buffer Overflow Risk
Summary
ALSA-2026:20579: Moderate: freeipmi security update. Affects freeipmi versions < 1.6.17-1.el8_10. Fixed in 1.6.17-1.el8_10. How to fix ↓
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Background
FreeIPMI is a suite of tools and libraries that provide an Intelligent Platform Management Interface (IPMI) for remote console and system management. It allows administrators to manage and monitor hardware components in a server environment, ensuring system reliability and performance. The recent vulnerability exposes FreeIPMI to buffer overflow attacks, which can lead to unauthorized access or system crashes.
Vulnerability Detail
The vulnerability identified as CVE-2026-33554 pertains to buffer overflows occurring on response messages via the ipmi-oem command in FreeIPMI. This flaw can be exploited by attackers to execute arbitrary code, potentially compromising the integrity and availability of the affected systems. The risk is particularly significant in environments where FreeIPMI is used for critical infrastructure management.
How To Fix
Minimum fixed version
1.6.17-1.el8_10
This is the first release that contains the fix.
sudo dnf update freeipmiTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, consider disabling the ipmi-oem command or restricting access to it until the packages can be updated. This can help prevent exploitation of the vulnerability while a permanent fix is being implemented.
Conclusion
The FreeIPMI packages have a moderate vulnerability that can lead to buffer overflow attacks, posing significant risks to system integrity. It is crucial to update the affected packages to the latest version to mitigate these risks. Users are encouraged to monitor their systems and utilize tools like Vulert for real-time vulnerability alerts.
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FAQ
CVE-2026-33554 is a vulnerability in FreeIPMI that allows for buffer overflow attacks via the ipmi-oem command, potentially leading to unauthorized access.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The risks include unauthorized access to system management functions, potential data breaches, and system crashes, which can affect operational continuity.
Yes, a patch is available in the form of an updated package version 1.6.17-1.el8_10 that addresses the vulnerability.
If immediate updates are not possible, consider implementing access controls or disabling the vulnerable command as a temporary measure.
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