Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003415)

high Nessus Plugin ID 287888

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-2026-003415 advisory.

The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.

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?bf909873

http://www.nessus.org/u?47d9f18c

http://openwall.com/lists/oss-security/2017/12/21/2

http://www.securityfocus.com/bid/102288

https://bugs.chromium.org/p/project-zero/issues/detail?id=1454

http://www.nessus.org/u?cc4be59c

http://www.nessus.org/u?9449522d

https://security-tracker.debian.org/tracker/CVE-2017-16995

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

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

https://usn.ubuntu.com/3633-1/

https://usn.ubuntu.com/usn/usn-3523-2/

https://www.debian.org/security/2017/dsa-4073

https://www.exploit-db.com/exploits/44298/

https://www.exploit-db.com/exploits/45010/

https://www.exploit-db.com/exploits/45058/

Plugin Details

Severity: High

ID: 287888

File Name: unity_linux_UTSA-2026-003415.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2017-16995

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/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: 12/22/2017

Reference Information

CVE: CVE-2017-16995