Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000796)

high Nessus Plugin ID 290837

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-2026-000796 advisory.

The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.

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?101575b8

http://www.nessus.org/u?4cd62642

http://www.nessus.org/u?e27ffd6e

http://www.nessus.org/u?1392d8b8

http://www.nessus.org/u?536b90ca

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8

http://www.mandriva.com/security/advisories?name=MDVSA-2014:038

http://www.openwall.com/lists/oss-security/2014/01/14/1

http://www.securityfocus.com/bid/64781

http://www.securitytracker.com/id/1029592

http://www.ubuntu.com/usn/USN-2113-1

http://www.ubuntu.com/usn/USN-2117-1

http://www.ubuntu.com/usn/USN-2133-1

http://www.ubuntu.com/usn/USN-2134-1

http://www.ubuntu.com/usn/USN-2135-1

http://www.ubuntu.com/usn/USN-2136-1

http://www.ubuntu.com/usn/USN-2138-1

http://www.ubuntu.com/usn/USN-2139-1

http://www.ubuntu.com/usn/USN-2141-1

https://bugzilla.redhat.com/show_bug.cgi?id=1052914

http://www.nessus.org/u?cacc72f7

https://lkml.org/lkml/2014/1/9/637

https://security-tracker.debian.org/tracker/CVE-2014-1438

Plugin Details

Severity: High

ID: 290837

File Name: unity_linux_UTSA-2026-000796.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: Medium

Base Score: 4.7

Temporal Score: 3.5

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

CVSS Score Source: CVE-2014-1438

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: 1/14/2026

Vulnerability Publication Date: 12/28/2013

Reference Information

CVE: CVE-2014-1438