Amazon Linux 2023 : ghostscript, ghostscript-gtk, ghostscript-tools-dvipdf (ALAS2023-2025-927)

critical Nessus Plugin ID 234341

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-927 advisory.

PDF interpreter - Guard against unsigned int overflow. A large Type 4 function definition can overflow the uint counter, causing the allocated buffer to be smaller than required.

Info: https://bugs.ghostscript.com/show_bug.cgi?id=708253Patch: https://cgit.ghostscript.com/cgi- bin/cgit.cgi/ghostpdl.git/commit/?id=ef42ff180a04926e187d40faea40d4a43e304e3b (ghostpdl-10.05.0) (CVE-2025-27834)

Fix confusion between bytes and shorts. Data is being copied from a string in multiple of shorts, rather than multiple of bytes, leading to both a read (probably benign, given the memory manager) and write buffer overflow.

Info: https://bugs.ghostscript.com/show_bug.cgi?id=708131Patch: https://cgit.ghostscript.com/cgi- bin/cgit.cgi/ghostpdl.git/commit/?id=de900010a6f2310d1fd54e99eeba466693da0e13 (ghostpdl-10.05.0) (CVE-2025-27835)

Potential print buffer overflow. Fixed in ghostpdl-10.05.0 by implementing stricter buffer length validation.

Info: https://bugs.ghostscript.com/show_bug.cgi?id=708192Patch: https://cgit.ghostscript.com/cgi- bin/cgit.cgi/ghostpdl.git/commit/?id=8b6d19b2b4079da6863ef25f2370f25d4b054919 (ghostpdl-10.05.0) (CVE-2025-27836)

Patch to error check UTF-8 conversions. Fixed in ghostpdl-10.05.0 by adding a check on the value returned by the gp_utf8_to_uint16 function.

Info: https://bugs.ghostscript.com/show_bug.cgi?id=708238Patch: https://cgit.ghostscript.com/cgi- bin/cgit.cgi/ghostpdl.git/commit/?id=dbb9f2b11f820697e77863523a8d835ab040e5d1 (ghostpdl-10.05.0) (CVE-2025-27837)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update ghostscript --releasever 2023.7.20250414' to update your system.

Plugin Details

Severity: Critical

ID: 234341

File Name: al2023_ALAS2023-2025-927.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/14/2025

Updated: 4/14/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2025-27836

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS Score Source: CVE-2025-27837

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ghostscript-gtk-debuginfo, p-cpe:/a:amazon:linux:ghostscript-tools-fonts, p-cpe:/a:amazon:linux:ghostscript-x11, p-cpe:/a:amazon:linux:ghostscript-tools-printing, p-cpe:/a:amazon:linux:libgs-debuginfo, p-cpe:/a:amazon:linux:libgs, p-cpe:/a:amazon:linux:ghostscript-tools-dvipdf, p-cpe:/a:amazon:linux:ghostscript-debugsource, p-cpe:/a:amazon:linux:ghostscript-doc, p-cpe:/a:amazon:linux:ghostscript-gtk, p-cpe:/a:amazon:linux:ghostscript, p-cpe:/a:amazon:linux:ghostscript-debuginfo, p-cpe:/a:amazon:linux:libgs-devel, p-cpe:/a:amazon:linux:ghostscript-x11-debuginfo, cpe:/o:amazon:linux:2023

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/9/2025

Vulnerability Publication Date: 3/25/2025

Reference Information

CVE: CVE-2025-27834, CVE-2025-27835, CVE-2025-27836, CVE-2025-27837

IAVB: 2025-B-0043

Detections

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