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CentOS Linux 6 [TuxCare] Security Update: ghostscript / ghostscript-devel / ghostscript-doc / ghostscript-gtk Multiple Vulnerabilities (CENTOS6:CLSA-2026:1793843126)

high Nessus Plugin ID 378004

Synopsis

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

Description

The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1793843126 advisory.

 - The set_text_distance function in devices/vector/gdevpdts.c in the pdfwrite component in Artifex Ghostscript through 9.22 does not prevent overflows in text-positioning calculation, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PDF document. (CVE-2018-10194)

 - In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files could use a type confusion in the LockDistillerParams parameter to crash the interpreter or execute code. (CVE-2018-15910)

 - In Artifex Ghostscript 9.23 before 2018-08-24, a type confusion using the .shfill operator could be used by attackers able to supply crafted PostScript files to crash the interpreter or potentially execute code.
 (CVE-2018-15909)

 - An issue was discovered in Artifex Ghostscript before 9.24. A type confusion in ztype could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact. (CVE-2018-16511)

 - Artifex Ghostscript before 9.25 allowed a user-writable error exception table, which could be used by remote attackers able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code. (CVE-2018-17183)

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 packages based on the guidance in TuxCare advisory CENTOS6:CLSA-2026:1793843126.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1793843126

http://www.nessus.org/u?79dc8eb3

Plugin Details

Severity: High

ID: 378004

File Name: tuxcare_centos_6_CLSA-2026-1793843126.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/9/2026

Updated: 11/9/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2018-17183

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

Temporal Vector: CVSS:3.0/E:U/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 Ease: No known exploits are available

Patch Publication Date: 11/5/2026

Vulnerability Publication Date: 4/18/2018

Reference Information

CVE: CVE-2018-10194, CVE-2018-15909, CVE-2018-15910, CVE-2018-15911, CVE-2018-16511, CVE-2018-16540, CVE-2018-16802, CVE-2018-17183

CLSA: 2026:1793843126