Unity Linux 20.1070e Security Update: kernel (UTSA-2026-002537)

medium Nessus Plugin ID 284961

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-2026-002537 advisory.

The walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system 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?cf2fa90e

http://www.nessus.org/u?a7af25e4

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.2

http://www.securityfocus.com/bid/101969

https://access.redhat.com/errata/RHSA-2018:0502

https://bugs.chromium.org/p/project-zero/issues/detail?id=1431

http://www.nessus.org/u?b3078f11

https://security-tracker.debian.org/tracker/CVE-2017-16994

https://usn.ubuntu.com/3617-1/

https://usn.ubuntu.com/3617-2/

https://usn.ubuntu.com/3617-3/

https://usn.ubuntu.com/3619-1/

https://usn.ubuntu.com/3619-2/

https://usn.ubuntu.com/3632-1/

https://www.exploit-db.com/exploits/43178/

Plugin Details

Severity: Medium

ID: 284961

File Name: unity_linux_UTSA-2026-002537.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: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2017-16994

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:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 11/15/2017

Reference Information

CVE: CVE-2017-16994