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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001844)

medium Nessus Plugin ID 286450

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-2026-001844 advisory.

 The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not check authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands, which allows local users to remove kernel controls and cause a denial of service (use-after-free and system crash) by leveraging /dev/snd/controlCX access for an ioctl call.

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?53c3e343

http://www.nessus.org/u?7a5ed3f8

http://www.nessus.org/u?3994282b

http://rhn.redhat.com/errata/RHSA-2014-1083.html

http://secunia.com/advisories/59434

http://secunia.com/advisories/59777

http://secunia.com/advisories/60545

http://secunia.com/advisories/60564

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2

http://www.openwall.com/lists/oss-security/2014/06/26/6

http://www.securityfocus.com/bid/68162

http://www.ubuntu.com/usn/USN-2334-1

http://www.ubuntu.com/usn/USN-2335-1

https://bugzilla.redhat.com/show_bug.cgi?id=1113445

http://www.nessus.org/u?fddb94ce

https://security-tracker.debian.org/tracker/CVE-2014-4654

Plugin Details

Severity: Medium

ID: 286450

File Name: unity_linux_UTSA-2026-001844.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2014-4654

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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: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: 6/18/2014

Reference Information

CVE: CVE-2014-4654