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CentOS Linux 7 [TuxCare] Security Update: ruby / ruby-devel / ruby-doc / ruby-irb / ruby-libs / ruby-tcltk / etc (CENTOS7:CLSA-2025:1758023679)

critical Nessus Plugin ID 360141

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2025:1758023679 advisory.

 - An exploitable heap overflow vulnerability exists in the Fiddle::Function.new initialize function functionality of Ruby. In Fiddle::Function.new initialize heap buffer arg_types allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow. (CVE-2016-2339)

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 packages based on the guidance in TuxCare advisory CENTOS7:CLSA-2025:1758023679.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2025:1758023679

http://www.nessus.org/u?bbe24957

Plugin Details

Severity: Critical

ID: 360141

File Name: tuxcare_centos_7_CLSA-2025-1758023679.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.47

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2016-2339

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/16/2025

Vulnerability Publication Date: 6/14/2016

Reference Information

CVE: CVE-2016-2339

CLSA: 2025:1758023679