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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002583)

high Nessus Plugin ID 287804

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-2026-002583 advisory.

 The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.

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?e578643e

http://www.nessus.org/u?cd11e0cb

http://www.nessus.org/u?e707a1cc

http://www.nessus.org/u?86d107a6

http://www.nessus.org/u?f038b32a

http://www.nessus.org/u?dd0aec87

http://www.nessus.org/u?4f9dbb7a

http://www.nessus.org/u?781faab0

http://www.nessus.org/u?52bacd0d

http://www.nessus.org/u?71f27850

http://www.nessus.org/u?bb20b394

http://www.nessus.org/u?40fa02cb

http://www.nessus.org/u?e46f64d8

http://www.nessus.org/u?67df0f88

http://www.nessus.org/u?ff3f6632

http://rhn.redhat.com/errata/RHSA-2016-1847.html

http://rhn.redhat.com/errata/RHSA-2016-1875.html

http://rhn.redhat.com/errata/RHSA-2016-1883.html

http://www.debian.org/security/2016/dsa-3607

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3

http://www.openwall.com/lists/oss-security/2016/06/24/5

http://www.openwall.com/lists/oss-security/2016/09/29/10

http://www.nessus.org/u?4763b451

http://www.nessus.org/u?c85df308

http://www.nessus.org/u?cb8b72e0

http://www.securityfocus.com/bid/91451

http://www.securitytracker.com/id/1036171

http://www.ubuntu.com/usn/USN-3016-1

http://www.ubuntu.com/usn/USN-3016-2

http://www.ubuntu.com/usn/USN-3016-3

http://www.ubuntu.com/usn/USN-3016-4

http://www.ubuntu.com/usn/USN-3017-1

http://www.ubuntu.com/usn/USN-3017-2

http://www.ubuntu.com/usn/USN-3017-3

http://www.ubuntu.com/usn/USN-3018-1

http://www.ubuntu.com/usn/USN-3018-2

http://www.ubuntu.com/usn/USN-3019-1

http://www.ubuntu.com/usn/USN-3020-1

https://bugzilla.redhat.com/show_bug.cgi?id=1349722

http://www.nessus.org/u?51549e3a

http://www.nessus.org/u?11511d87

http://www.nessus.org/u?6cf219f0

https://security-tracker.debian.org/tracker/CVE-2016-4997

https://www.exploit-db.com/exploits/40435/

https://www.exploit-db.com/exploits/40489/

Plugin Details

Severity: High

ID: 287804

File Name: unity_linux_UTSA-2026-002583.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

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-2016-4997

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/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: 6/24/2016

Reference Information

CVE: CVE-2016-4997