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RHEL 10 : giflib (RHSA-2026:8858)

medium Nessus Plugin ID 307544

Synopsis

The remote Red Hat host is missing a security update for giflib.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:8858 advisory.

 giflib is a library for reading and writing gif images.

 Security Fix(es):

 * giflib: Giflib: Double-free vulnerability leading to memory corruption (CVE-2026-23868)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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

Update the RHEL giflib package based on the guidance in RHSA-2026:8858.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2446207

http://www.nessus.org/u?53791e39

https://access.redhat.com/errata/RHSA-2026:8858

Plugin Details

Severity: Medium

ID: 307544

File Name: redhat-RHSA-2026-8858.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/20/2026

Updated: 4/20/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Important

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: cpe:/o:redhat:enterprise_linux:10.1, p-cpe:/a:redhat:enterprise_linux:giflib-devel, p-cpe:/a:redhat:enterprise_linux:giflib

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/20/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-23868

CWE: 825

RHSA: 2026:8858