Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002779)

critical Nessus Plugin ID 287720

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-2026-002779 advisory.

The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.

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?c1800a03

http://www.debian.org/security/2017/dsa-3886

http://www.securityfocus.com/bid/98085

https://access.redhat.com/errata/RHSA-2017:1615

https://access.redhat.com/errata/RHSA-2017:1616

https://access.redhat.com/errata/RHSA-2017:1647

https://access.redhat.com/errata/RHSA-2017:1715

https://access.redhat.com/errata/RHSA-2017:1723

https://access.redhat.com/errata/RHSA-2017:1766

https://access.redhat.com/errata/RHSA-2017:1798

https://access.redhat.com/errata/RHSA-2017:2412

https://access.redhat.com/errata/RHSA-2017:2428

https://access.redhat.com/errata/RHSA-2017:2429

https://access.redhat.com/errata/RHSA-2017:2472

https://access.redhat.com/errata/RHSA-2017:2732

http://www.nessus.org/u?1cc3083b

http://www.nessus.org/u?dabf4aef

https://security-tracker.debian.org/tracker/CVE-2017-7895

Plugin Details

Severity: Critical

ID: 287720

File Name: unity_linux_UTSA-2026-002779.nasl

Version: 1.2

Type: local

Published: 1/15/2026

Updated: 1/16/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2017-7895

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 4/28/2017

Reference Information

CVE: CVE-2017-7895