Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003348)

high Nessus Plugin ID 284898

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-2026-003348 advisory.

The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.

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?79a9afb2

http://www.debian.org/security/2017/dsa-3981

http://www.openwall.com/lists/oss-security/2017/08/15/4

http://www.securityfocus.com/bid/100343

http://www.securitytracker.com/id/1039176

http://xenbits.xen.org/xsa/advisory-229.html

https://bugzilla.redhat.com/show_bug.cgi?id=1477656

https://security-tracker.debian.org/tracker/CVE-2017-12134

https://security.gentoo.org/glsa/201801-14

https://support.citrix.com/article/CTX225941

https://usn.ubuntu.com/3655-1/

https://usn.ubuntu.com/3655-2/

Plugin Details

Severity: High

ID: 284898

File Name: unity_linux_UTSA-2026-003348.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2017-12134

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/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 Ease: No known exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 8/15/2017

Reference Information

CVE: CVE-2017-12134