Detections
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Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : FreeIPMI vulnerabilities (USN-8843-1)
medium Nessus Plugin ID 351468
Synopsis
The remote Ubuntu host is missing a security update.Description
The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8843-1 advisory.It was discovered that FreeIPMI incorrectly handled certain malformed Fujitsu SEL long-text responses, leading to a stack-based buffer overflow. An attacker in control of a malicious IPMI device could possibly use this issue to cause FreeIPMI to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-85504)
It was discovered that FreeIPMI incorrectly handled short responses when retrieving Fujitsu SEL entries, leading to a stack-based buffer over-read. An attacker in control of a malicious IPMI device could possibly use this issue to cause FreeIPMI to crash, resulting in a denial of service. (CVE-2026-85505)
It was discovered that FreeIPMI incorrectly handled certain Dell iDRAC and CMC IPv6 system information responses, leading to a stack-based buffer overflow. An attacker in control of a malicious IPMI device could possibly use this issue to cause FreeIPMI to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-85506, CVE-2026-85508)
It was discovered that FreeIPMI incorrectly handled certain Dell CMC system information responses, leading to a stack-based buffer overflow. An attacker in control of a malicious IPMI device could possibly use this issue to cause FreeIPMI to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85507)
It was discovered that FreeIPMI incorrectly handled FRU data responses that were larger than requested, leading to a stack-based buffer overflow. An attacker in control of a malicious IPMI device could possibly use this issue to cause FreeIPMI to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-85509)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 351468
File Name: ubuntu_USN-8843-1.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 9/30/2026
Updated: 9/30/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:freeipmi-bmc-watchdog, p-cpe:/a:canonical:ubuntu_linux:freeipmi-common, p-cpe:/a:canonical:ubuntu_linux:freeipmi-ipmidetect, p-cpe:/a:canonical:ubuntu_linux:freeipmi-ipmiseld, p-cpe:/a:canonical:ubuntu_linux:freeipmi-tools, p-cpe:/a:canonical:ubuntu_linux:freeipmi, p-cpe:/a:canonical:ubuntu_linux:libfreeipmi12, p-cpe:/a:canonical:ubuntu_linux:libfreeipmi16, p-cpe:/a:canonical:ubuntu_linux:libfreeipmi17, p-cpe:/a:canonical:ubuntu_linux:libipmiconsole2, p-cpe:/a:canonical:ubuntu_linux:libipmidetect0, p-cpe:/a:canonical:ubuntu_linux:libipmimonitoring5, p-cpe:/a:canonical:ubuntu_linux:libipmimonitoring5a, p-cpe:/a:canonical:ubuntu_linux:libipmimonitoring6
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 9/29/2026
Vulnerability Publication Date: 9/29/2026
Reference Information
USN: 8843-1