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Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002474)
medium Nessus Plugin ID 287799
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-2026-002474 advisory.The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.
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
https://exchange.xforce.ibmcloud.com/vulnerabilities/95689
http://www.nessus.org/u?b1ba305b
https://security-tracker.debian.org/tracker/CVE-2014-3601
http://www.nessus.org/u?2d2bdede
http://www.nessus.org/u?9db6316a
http://www.nessus.org/u?a205692b
http://www.nessus.org/u?f0ab19d3
http://www.nessus.org/u?5c7f4066
http://secunia.com/advisories/60830
http://www.securityfocus.com/bid/69489
http://www.ubuntu.com/usn/USN-2356-1
http://www.ubuntu.com/usn/USN-2357-1
http://www.ubuntu.com/usn/USN-2358-1
Plugin Details
Severity: Medium
ID: 287799
File Name: unity_linux_UTSA-2026-002474.nasl
Version: 1.1
Type: local
Published: 1/15/2026
Updated: 1/15/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.4
Vector: CVSS2#AV:A/AC:H/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2014-3601
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: 1/15/2026
Vulnerability Publication Date: 8/19/2014
Reference Information
CVE: CVE-2014-3601