Amazon Linux 2 : gdk-pixbuf2 (ALAS-2026-4100)

medium Nessus Plugin ID 379861

Synopsis

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

Description

The version of gdk-pixbuf2 installed on the remote host is prior to 2.36.12-3. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-4100 advisory.

A flaw was found in gdk-pixbuf. When loading a specially crafted JPEG image containing chunked ICC profile markers, an error during ICC profile parsing can leave stale size metadata after the profile buffer is freed. A subsequent allocation in the same decode can cause an out-of-bounds write, potentially crashing the application. To exploit this flaw, an application using gdk-pixbuf must process the malicious JPEG image.

Affected version >= 2.26.4 (CVE-2026-81893)

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 gdk-pixbuf2' or or 'yum update --advisory ALAS2-2026-4100' to update your system.

Plugin Details

Severity: Medium

ID: 379861

File Name: al2_ALAS-2026-4100.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 11/12/2026

Updated: 11/12/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.64

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-81893

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:gdk-pixbuf2-debuginfo, p-cpe:/a:amazon:linux:gdk-pixbuf2-devel, p-cpe:/a:amazon:linux:gdk-pixbuf2-tests, p-cpe:/a:amazon:linux:gdk-pixbuf2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/12/2026

Vulnerability Publication Date: 8/27/2026

Reference Information

CVE: CVE-2026-81893

Detections

Analytics