Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002487)

high Nessus Plugin ID 287208

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-2026-002487 advisory.

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid 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?42605afc

http://www.nessus.org/u?540ed1c8

http://www.nessus.org/u?2bb89a0d

http://www.nessus.org/u?d91c1af4

http://www.openwall.com/lists/oss-security/2016/02/24/7

http://www.openwall.com/lists/oss-security/2021/10/18/1

https://launchpad.net/bugs/1534961

https://security-tracker.debian.org/tracker/CVE-2016-1575

Plugin Details

Severity: High

ID: 287208

File Name: unity_linux_UTSA-2026-002487.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2016-1575

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 2/22/2016

Reference Information

CVE: CVE-2016-1575