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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001886)

medium Nessus Plugin ID 286771

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-2026-001886 advisory.

 The xfrm_state_netlink function in net/xfrm/xfrm_user.c in the Linux kernel before 3.5.7 does not properly handle error conditions in dump_one_state function calls, which allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) by leveraging the CAP_NET_ADMIN capability.

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?9f1c133a

http://www.nessus.org/u?269a60a0

http://rhn.redhat.com/errata/RHSA-2013-0744.html

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7

http://www.openwall.com/lists/oss-security/2013/03/07/2

http://www.ubuntu.com/usn/USN-1829-1

https://bugzilla.redhat.com/show_bug.cgi?id=919384

http://www.nessus.org/u?3c2ff393

https://security-tracker.debian.org/tracker/CVE-2013-1826

Plugin Details

Severity: Medium

ID: 286771

File Name: unity_linux_UTSA-2026-001886.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: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2013-1826

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/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: 1/15/2026

Vulnerability Publication Date: 3/7/2013

Reference Information

CVE: CVE-2013-1826