Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001082)

high Nessus Plugin ID 283763

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-2026-001082 advisory.

Format string vulnerability in the register_disk function in block/genhd.c in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and writing format string specifiers to /sys/module/md_mod/parameters/new_array in order to create a crafted /dev/md device name.

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?0ba9da21

http://www.nessus.org/u?2d86144f

http://www.nessus.org/u?dbdfe758

http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html

http://marc.info/?l=linux-kernel&m=137055204522556&w=2

http://rhn.redhat.com/errata/RHSA-2013-1645.html

http://rhn.redhat.com/errata/RHSA-2013-1783.html

http://rhn.redhat.com/errata/RHSA-2014-0284.html

http://www.debian.org/security/2013/dsa-2766

http://www.openwall.com/lists/oss-security/2013/06/06/13

http://www.ubuntu.com/usn/USN-1912-1

http://www.ubuntu.com/usn/USN-1913-1

http://www.ubuntu.com/usn/USN-1941-1

http://www.ubuntu.com/usn/USN-1942-1

https://bugzilla.redhat.com/show_bug.cgi?id=969515

https://security-tracker.debian.org/tracker/CVE-2013-2851

Plugin Details

Severity: High

ID: 283763

File Name: unity_linux_UTSA-2026-001082.nasl

Version: 1.3

Type: local

Published: 1/14/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2013-2851

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/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: 1/14/2026

Vulnerability Publication Date: 6/6/2013

Reference Information

CVE: CVE-2013-2851