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SUSE Linux giflib Important Heap Overflow Risk 2026-22382-1

suse
Calendar Grey July 1, 2026
Dist Suse Esm H88
An important SUSE update for giflib addresses CVE-2026-26740, fixing a heap overflow issue related to GIF processing.
An update that solves one vulnerability can now be installed.

Summary

## This update for giflib fixes the following issue * CVE-2026-26740: heap out-of-bounds read when processing a specially crafted GIF file containing a GCE block with a truncated extension byte count (bsc#1259836). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server 16.0 zypper in -t patch SUSE-SLES-16.0-1098=1 * SUSE Linux Enterprise Server for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-1098=1 ## Package List: * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64) * giflib-devel-5.2.2-160000.4.1 * giflib-progs-5.2.2-160000.4.1 * giflib-progs-debuginfo-5.2.2-160000.4.1

Topics%20covered

Topics Covered

security advisory security update SuSE important heap overflow giflib

References

* bsc#1259836

Cross-

* CVE-2026-26740

CVSS scores:

* CVE-2026-26740 ( SUSE ): 8.3

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

* CVE-2026-26740 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

* CVE-2026-26740 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

* CVE-2026-26740 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* SUSE Linux Enterprise Server 16.0

* SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-26740.html

* https://bugzilla.suse.com/show_bug.cgi?id=1259836

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22382-1
Release Date: 2026-06-28T09:26:36Z
Rating: important

Topics%20covered

Topics Covered

security advisory security update SuSE important heap overflow giflib

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