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[USN-8613-1] FreeIPMI vulnerabilities

Posted on 27 July 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8613-1
July 27, 2026

FreeIPMI vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in FreeIPMI.

Software Description:
- freeipmi: in-band and out-of-band Intelligent Platform Management Interface

Details:

Zhihan Zheng discovered that FreeIPMI had several buffer overflow
vulnerabilities in ipmi-oem response message handling. A local attacker
with control a malicious IPMI device or simulator could possibly cause
FreeIPMI to crash, resulting in a denial of service. (CVE-2026-33554,
CVE-2026-50031)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
freeipmi-tools 1.6.16-1ubuntu0.1

Ubuntu 24.04 LTS
freeipmi-tools 1.6.13-3ubuntu0.1

Ubuntu 22.04 LTS
freeipmi-tools 1.6.9-2ubuntu0.22.04.3

Ubuntu 20.04 LTS
freeipmi-tools 1.6.4-3ubuntu1.1+esm1
Available with Ubuntu Pro

Ubuntu 18.04 LTS
freeipmi-tools 1.4.11-1.1ubuntu4.1+esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
freeipmi-tools 1.4.11-1.1ubuntu4.1~0.16.04.1~esm1
Available with Ubuntu Pro

Ubuntu 14.04 LTS
freeipmi-tools 1.1.5-3ubuntu3.3+esm1
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8613-1
CVE-2026-33554, CVE-2026-50031

Package Information:
https://launchpad.net/ubuntu/+source/freeipmi/1.6.16-1ubuntu0.1
https://launchpad.net/ubuntu/+source/freeipmi/1.6.13-3ubuntu0.1
https://launchpad.net/ubuntu/+source/freeipmi/1.6.9-2ubuntu0.22.04.3

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