Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004650)

high Nessus Plugin ID 290208

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-2026-004650 advisory.

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

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?fc52d2b9

http://www.openwall.com/lists/oss-security/2021/02/10/6

http://www.openwall.com/lists/oss-security/2021/02/19/8

https://bugs.chromium.org/p/project-zero/issues/detail?id=2056

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11

http://www.nessus.org/u?f294b097

https://security-tracker.debian.org/tracker/CVE-2020-29369

https://security.netapp.com/advisory/ntap-20210115-0001/

Plugin Details

Severity: High

ID: 290208

File Name: unity_linux_UTSA-2026-004650.nasl

Version: 1.1

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2020-29369

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/16/2026

Vulnerability Publication Date: 11/28/2020

Reference Information

CVE: CVE-2020-29369