Detections
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Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: umoci (UTSA-2026-031608)

medium Nessus Plugin ID 341200

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-2026-031608 advisory.

 Open Container Initiative umoci before 0.4.7 allows attackers to overwrite arbitrary host paths via a crafted image that causes symlink traversal when umoci unpack or umoci raw unpack is used.

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 umoci package.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2021-29136

http://www.nessus.org/u?a38c8d3c

http://www.nessus.org/u?fed5fda7

Plugin Details

Severity: Medium

ID: 341200

File Name: unity_linux_UTSA-2026-031608.nasl

Version: 1.1

Type: Local

Published: 8/28/2026

Updated: 8/28/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-29136

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/24/2026

Vulnerability Publication Date: 4/6/2021

Reference Information

CVE: CVE-2021-29136