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Amazon Linux 2 : gimp, --advisory ALAS2GIMP-2026-018 (ALASGIMP-2026-018)

medium Nessus Plugin ID 337241

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of gimp installed on the remote host is prior to 2.8.22-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2GIMP-2026-018 advisory.

 A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc.
 This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service. (CVE-2026-66757)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update gimp' or or 'yum update --advisory ALAS2GIMP-2026-018' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2GIMP-2026-018.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-66757.html

Plugin Details

Severity: Medium

ID: 337241

File Name: al2_ALASGIMP-2026-018.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/18/2026

Updated: 8/18/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-66757

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:gimp-debuginfo, p-cpe:/a:amazon:linux:gimp-devel-tools, p-cpe:/a:amazon:linux:gimp-devel, p-cpe:/a:amazon:linux:gimp-libs, p-cpe:/a:amazon:linux:gimp

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/17/2026

Vulnerability Publication Date: 7/27/2026

Reference Information

CVE: CVE-2026-66757