Detections
Analytics
Amazon Linux 2 : ghostscript (ALAS-2025-2820)
critical Nessus Plugin ID 234521
Language:
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of ghostscript installed on the remote host is prior to 9.54.0-9. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2820 advisory.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 'yum update ghostscript' to update your system.See Also
https://alas.aws.amazon.com/AL2/ALAS-2025-2820.html
https://alas.aws.amazon.com/cve/html/CVE-2025-27835.html
https://alas.aws.amazon.com/cve/html/CVE-2025-27836.html
Plugin Details
Severity: Critical
ID: 234521
File Name: al2_ALAS-2025-2820.nasl
Version: 1.1
Type: local
Agent: unix
Published: 4/17/2025
Updated: 4/17/2025
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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-cups, p-cpe:/a:amazon:linux:libgs, p-cpe:/a:amazon:linux:ghostscript-doc, p-cpe:/a:amazon:linux:ghostscript-gtk, p-cpe:/a:amazon:linux:ghostscript, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:ghostscript-debuginfo, p-cpe:/a:amazon:linux:libgs-devel
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-2025-27835, CVE-2025-27836, CVE-2025-27837
IAVB: 2025-B-0043