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Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: libarchive (UTSA-2026-016794)

medium Nessus Plugin ID 313471

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-2026-016794 advisory.

 An issue was discovered in libarchive bsdtar before version 3.8.1 in function apply_substitution in file tar/subst.c when processing crafted -s substitution rules. This can cause unbounded memory allocation and lead to denial of service (Out-of-Memory crash).

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 libarchive package.

See Also

https://gitee.com/src-openeuler/libarchive/issues/ID586H

https://nvd.nist.gov/vuln/detail/CVE-2025-60753

http://www.nessus.org/u?1c3cbd52

Plugin Details

Severity: Medium

ID: 313471

File Name: unity_linux_UTSA-2026-016794.nasl

Version: 1.1

Type: Local

Published: 5/9/2026

Updated: 5/9/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2025-60753

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

Temporal Vector: CVSS:3.0/E:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/9/2026

Vulnerability Publication Date: 7/31/2025

Reference Information

CVE: CVE-2025-60753