Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003329)

high Nessus Plugin ID 287596

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-2026-003329 advisory.

Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.

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?ecdd0698

http://www.nessus.org/u?9e39d19d

http://www.nessus.org/u?a5507d0d

http://www.nessus.org/u?4644992b

http://www.nessus.org/u?98397162

http://www.nessus.org/u?b44b2909

http://www.nessus.org/u?9a87241e

http://www.nessus.org/u?6c3008b9

http://www.nessus.org/u?3cefc289

http://www.nessus.org/u?d61a84e3

http://www.nessus.org/u?dbcdc121

http://www.nessus.org/u?182f1d9c

http://www.nessus.org/u?a01a5786

http://rhn.redhat.com/errata/RHSA-2017-0386.html

http://rhn.redhat.com/errata/RHSA-2017-0387.html

http://rhn.redhat.com/errata/RHSA-2017-0402.html

http://www.openwall.com/lists/oss-security/2016/12/06/1

http://www.securityfocus.com/bid/94692

http://www.securitytracker.com/id/1037403

http://www.securitytracker.com/id/1037968

http://www.ubuntu.com/usn/USN-3149-1

http://www.ubuntu.com/usn/USN-3149-2

http://www.ubuntu.com/usn/USN-3150-1

http://www.ubuntu.com/usn/USN-3150-2

http://www.ubuntu.com/usn/USN-3151-1

http://www.ubuntu.com/usn/USN-3151-2

http://www.ubuntu.com/usn/USN-3151-3

http://www.ubuntu.com/usn/USN-3151-4

http://www.ubuntu.com/usn/USN-3152-1

http://www.ubuntu.com/usn/USN-3152-2

https://bugzilla.redhat.com/show_bug.cgi?id=1400019

http://www.nessus.org/u?537b3581

https://security-tracker.debian.org/tracker/CVE-2016-8655

https://source.android.com/security/bulletin/2017-03-01.html

https://www.exploit-db.com/exploits/40871/

https://www.exploit-db.com/exploits/44696/

Plugin Details

Severity: High

ID: 287596

File Name: unity_linux_UTSA-2026-003329.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

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-2016-8655

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: 12/6/2016

Reference Information

CVE: CVE-2016-8655