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Amazon Linux 2023 : giflib, giflib-devel, giflib-utils (ALAS2023-2026-1508)

medium Nessus Plugin ID 304584

Synopsis

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

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1508 advisory.

 Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be possible. (CVE-2026-23868)

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 'dnf update giflib --releasever 2023.10.20260330' or or 'dnf update --advisory ALAS2023-2026-1508 --releasever 2023.10.20260330' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1508.html

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

https://explore.alas.aws.amazon.com/CVE-2026-23868.html

Plugin Details

Severity: Medium

ID: 304584

File Name: al2023_ALAS2023-2026-1508.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/1/2026

Updated: 4/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-23868

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:giflib-utils, p-cpe:/a:amazon:linux:giflib-debuginfo, p-cpe:/a:amazon:linux:giflib-devel, p-cpe:/a:amazon:linux:giflib, p-cpe:/a:amazon:linux:giflib-debugsource, p-cpe:/a:amazon:linux:giflib-utils-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: 4/1/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-23868