Unity Linux 20.1060a Security Update: kernel (UTSA-2026-002887)

medium Nessus Plugin ID 284939

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-2026-002887 advisory.

The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesystem has a realtime device, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via vectors related to setting an RHINHERIT flag on a directory.

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?f9ec832b

http://www.nessus.org/u?66d4fc36

http://seclists.org/oss-sec/2017/q3/436

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

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.2

http://www.securityfocus.com/bid/100851

https://access.redhat.com/errata/RHSA-2017:2918

https://bugzilla.redhat.com/show_bug.cgi?id=1491344

http://www.nessus.org/u?5c0e68de

https://security-tracker.debian.org/tracker/CVE-2017-14340

Plugin Details

Severity: Medium

ID: 284939

File Name: unity_linux_UTSA-2026-002887.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2017-14340

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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 9/13/2017

Reference Information

CVE: CVE-2017-14340