Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002486)

high Nessus Plugin ID 287020

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-2026-002486 advisory.

The netlink_sendmsg function in net/netlink/af_netlink.c in the Linux kernel before 3.5.5 does not validate the dst_pid field, which allows local users to have an unspecified impact by spoofing Netlink messages.

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?70cd4750

http://www.nessus.org/u?907fbb48

http://marc.info/?l=linux-netdev&m=134522422125983&w=2

http://marc.info/?l=linux-netdev&m=134522422925986&w=2

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5

http://www.openwall.com/lists/oss-security/2015/02/22/10

http://www.securityfocus.com/bid/72739

https://bugzilla.redhat.com/show_bug.cgi?id=848949

http://www.nessus.org/u?9580b56d

https://security-tracker.debian.org/tracker/CVE-2012-6689

Plugin Details

Severity: High

ID: 287020

File Name: unity_linux_UTSA-2026-002486.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2012-6689

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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: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: 1/15/2026

Vulnerability Publication Date: 8/16/2012

Reference Information

CVE: CVE-2012-6689