Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002185)

high Nessus Plugin ID 286826

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-2026-002185 advisory.

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.

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?b20f99b8

http://www.nessus.org/u?46ce26a7

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24

https://bugzilla.redhat.com/show_bug.cgi?id=826702

http://www.nessus.org/u?eebac29a

https://security-tracker.debian.org/tracker/CVE-2012-6638

Plugin Details

Severity: High

ID: 286826

File Name: unity_linux_UTSA-2026-002185.nasl

Version: 1.1

Type: local

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2012-6638

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: 2/15/2014

Reference Information

CVE: CVE-2012-6638