Detections
Analytics
Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001046)
medium Nessus Plugin ID 291085
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001046 advisory.The recalculate_apic_map function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (host OS crash) via a crafted ICR write operation in x2apic mode.
Tenable has extracted the preceding description block directly from the Unity Linux 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 kernel package.See Also
http://www.nessus.org/u?aba9faac
http://www.nessus.org/u?3f21b640
http://www.nessus.org/u?c7675788
http://www.nessus.org/u?9933acc0
http://www.openwall.com/lists/oss-security/2013/12/12/12
http://www.securityfocus.com/bid/64319
http://www.ubuntu.com/usn/USN-2113-1
http://www.ubuntu.com/usn/USN-2117-1
http://www.ubuntu.com/usn/USN-2136-1
https://bugzilla.redhat.com/show_bug.cgi?id=1033106
Plugin Details
Severity: Medium
ID: 291085
File Name: unity_linux_UTSA-2026-001046.nasl
Version: 1.1
Type: local
Published: 1/16/2026
Updated: 1/16/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.8
CVSS v2
Risk Factor: Medium
Base Score: 5.2
Temporal Score: 4.1
Vector: CVSS2#AV:A/AC:M/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2013-6376
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/14/2026
Vulnerability Publication Date: 12/12/2013
Reference Information
CVE: CVE-2013-6376