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RHEL 9 : zziplib (RHSA-2025:20838)

medium Nessus Plugin ID 274800

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Synopsis

The remote Red Hat host is missing a security update for zziplib.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:20838 advisory.

 The zziplib is a lightweight library to easily extract data from zip files.

 Security Fix(es):

 * zziplib: directory traversal in unzzip_cat in the bins/unzzipcat-mem.c (CVE-2018-17828)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

 Additional Changes:

 For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 RHEL zziplib package based on the guidance in RHSA-2025:20838.

See Also

http://www.nessus.org/u?b6159d8b

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=1635888

http://www.nessus.org/u?c619789f

https://access.redhat.com/errata/RHSA-2025:20838

Plugin Details

Severity: Medium

ID: 274800

File Name: redhat-RHSA-2025-20838.nasl

Version: 1.1

Type: local

Agent: unix

Published: 11/11/2025

Updated: 11/11/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2018-17828

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:H/A:N

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:zziplib-utils, p-cpe:/a:redhat:enterprise_linux:zziplib, p-cpe:/a:redhat:enterprise_linux:zziplib-devel, cpe:/o:redhat:enterprise_linux:9

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/11/2025

Vulnerability Publication Date: 10/1/2018

Reference Information

CVE: CVE-2018-17828

CWE: 22

RHSA: 2025:20838