openSUSE 16 Security Update : 7zip (openSUSE-SU-2026:20273-1)

medium Nessus Plugin ID 300193

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Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20273-1 advisory.

- Update to 25.01 (boo#1249130)
* The code for handling symbolic links has been changed to provide greater security when extracting files from archives
* Command line switch -snld20 can be used to bypass default security checks when creating symbolic links.

- Update to 25.00:
* bzip2 compression speed was increased by 15-40%.
* deflate (zip/gz) compression speed was increased by 1-3%.
* improved support for zip, cpio and fat archives.
* CVE-2025-53816: Fixed input manipulation leading to heap buffer overflow (bsc#1246706)
* CVE-2025-53817: Fixed null pointer dereference leading to denial of service (bsc#1246707)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected 7zip package.

See Also

https://bugzilla.suse.com/1246706

https://bugzilla.suse.com/1246707

https://bugzilla.suse.com/1249130

https://www.suse.com/security/cve/CVE-2025-53816

https://www.suse.com/security/cve/CVE-2025-53817

Plugin Details

Severity: Medium

ID: 300193

File Name: openSUSE-2026-20273-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/2/2026

Updated: 3/2/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2025-53817

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:7zip

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/26/2026

Vulnerability Publication Date: 7/17/2025

Reference Information

CVE: CVE-2025-53816, CVE-2025-53817

IAVA: 2025-A-0540-S