Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000816)

medium Nessus Plugin ID 290634

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-2026-000816 advisory.

The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.

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?e3249ccb

http://www.nessus.org/u?4ca489fc

http://www.nessus.org/u?217c11b7

http://www.openwall.com/lists/oss-security/2016/02/14/1

http://www.ubuntu.com/usn/USN-2947-1

http://www.ubuntu.com/usn/USN-2947-2

http://www.ubuntu.com/usn/USN-2947-3

https://bugzilla.redhat.com/show_bug.cgi?id=1308452

http://www.nessus.org/u?daec014f

https://security-tracker.debian.org/tracker/CVE-2016-2383

Plugin Details

Severity: Medium

ID: 290634

File Name: unity_linux_UTSA-2026-000816.nasl

Version: 1.1

Type: local

Published: 1/16/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2016-2383

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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:U/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 Ease: No known exploits are available

Patch Publication Date: 1/14/2026

Vulnerability Publication Date: 2/14/2016

Reference Information

CVE: CVE-2016-2383