RockyLinux 8 : gzip (RLSA-2026:65998)

medium Nessus Plugin ID 344533

Synopsis

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

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:65998 advisory.

* gzip: gzip: Arbitrary file overwrite via insecure temporary file handling in gzexe utility (CVE-2026-41991)

* gzip: gzip: Information disclosure via global buffer overflow in LZH decompression (CVE-2026-41992)

Tenable has extracted the preceding description block directly from the RockyLinux 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 gzip, gzip-debuginfo and / or gzip-debugsource packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2494158

https://bugzilla.redhat.com/show_bug.cgi?id=2494159

https://errata.rockylinux.org/RLSA-2026:65998

Plugin Details

Severity: Medium

ID: 344533

File Name: rocky_linux_RLSA-2026-65998.nasl

Version: 1.1

Type: Local

Published: 9/10/2026

Updated: 9/10/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 96.02

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-41992

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:gzip-debuginfo, p-cpe:/a:rocky:linux:gzip-debugsource, p-cpe:/a:rocky:linux:gzip

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/10/2026

Vulnerability Publication Date: 6/29/2026

Reference Information

CVE: CVE-2026-41991, CVE-2026-41992