Detections
Analytics
Amazon Linux 2 : giflib, --advisory ALAS2-2026-3212 (ALAS-2026-3212)
medium Nessus Plugin ID 304572
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of giflib installed on the remote host is prior to 4.1.6-9. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3212 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 'yum update giflib' or or 'yum update --advisory ALAS2-2026-3212' to update your system.See Also
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: Medium
ID: 304572
File Name: al2_ALAS-2026-3212.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, cpe:/o:amazon:linux:2
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