Upstream information

CVE-2026-56003 at MITRE

Description

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail SUSE
Base Score 7.3
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact High
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 7
Vector CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Attack Vector Local
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact Low
Vulnerable System Integrity Impact Low
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1269020 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 15 SP7
SUSE Linux Enterprise High Performance Computing 15 SP7
SUSE Linux Enterprise Module for Basesystem 15 SP7
SUSE Linux Enterprise Server 15 SP7
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Module-Basesystem-15-SP7-2026-2794
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2794
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2794
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2794
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2794
SUSE Linux Enterprise Server 12 SP5-LTSS
  • libXfont2-2 >= 2.0.3-3.3.1
 Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-2026-2793
SUSE Linux Enterprise Server 15 SP4-LTSS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2794
SUSE Linux Enterprise Server 15 SP5-LTSS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2794
SUSE Linux Enterprise Server 15 SP6-LTSS
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2794
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • libXfont2-2 >= 2.0.3-3.3.1
 Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2793
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2794
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2794
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2794
SUSE Manager Proxy LTS 4.3
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-LTS-2026-2794
SUSE Manager Retail Branch Server LTS 4.3
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-LTS-2026-2794
SUSE Manager Server LTS 4.3
  • libXfont2-2 >= 2.0.3-150000.3.3.1
  • libXfont2-devel >= 2.0.3-150000.3.3.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2026-2794

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 libXfont2 Released
SUSE Linux Enterprise High Performance Computing 15 SP7 libXfont2 Released
SUSE Linux Enterprise Module for Basesystem 15 SP7 libXfont2 Released
SUSE Linux Enterprise Server 15 SP7 libXfont2 Released
SUSE Linux Enterprise Server 16.0 libXfont2 In progress
SUSE Linux Enterprise Server 16.1 libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 libXfont2 Released
SUSE Linux Enterprise Server for SAP applications 16.0 libXfont2 In progress
SUSE Linux Enterprise Server for SAP applications 16.1 libXfont2 Affected
openSUSE Leap 16.0 libXfont2 Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS libXfont2 Released
SUSE Linux Enterprise High Performance Computing 15 SP5 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS libXfont2 Released
SUSE Linux Enterprise Module for Basesystem 15 SP4 libXfont2 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 libXfont2 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 libXfont2 Affected
SUSE Linux Enterprise Server 12 SP5 libXfont2 Affected
SUSE Linux Enterprise Server 12 SP5-LTSS libXfont2 Released
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security libXfont2 Released
SUSE Linux Enterprise Server 15 SP4 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP4-LTSS libXfont2 Released
SUSE Linux Enterprise Server 15 SP5 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP5-LTSS libXfont2 Released
SUSE Linux Enterprise Server 15 SP6 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP6-LTSS libXfont2 Released
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 libXfont2 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 libXfont2 Released
SUSE Manager Proxy 4.3 libXfont2 Affected
SUSE Manager Proxy LTS 4.3 libXfont2 Released
SUSE Manager Retail Branch Server 4.3 libXfont2 Affected
SUSE Manager Retail Branch Server LTS 4.3 libXfont2 Released
SUSE Manager Server 4.3 libXfont2 Affected
SUSE Manager Server LTS 4.3 libXfont2 Released
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.0 libXfont2 Affected
SUSE Enterprise Storage 6 libXfont2 Affected
SUSE Enterprise Storage 7 libXfont2 Affected
SUSE Enterprise Storage 7.1 libXfont2 Affected
SUSE Linux Enterprise Desktop 12 SP4 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 SP1 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 SP2 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 SP3 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 SP4 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 SP5 libXfont2 Affected
SUSE Linux Enterprise Desktop 15 SP6 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS libXfont2 Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS libXfont2 Released
SUSE Linux Enterprise High Performance Computing 15 SP6 libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS libXfont2 Affected
SUSE Linux Enterprise High Performance Computing 15-LTSS libXfont2 Affected
SUSE Linux Enterprise Module for Basesystem 15 libXfont2 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 libXfont2 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 libXfont2 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 libXfont2 Affected
SUSE Linux Enterprise Real Time 15 SP2 libXfont2 Affected
SUSE Linux Enterprise Real Time 15 SP3 libXfont2 Affected
SUSE Linux Enterprise Real Time 15 SP4 libXfont2 Affected
SUSE Linux Enterprise Server 12 SP4 libXfont2 Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS libXfont2 Affected
SUSE Linux Enterprise Server 12 SP4-LTSS libXfont2 Affected
SUSE Linux Enterprise Server 15 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP1 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP1-BCL libXfont2 Affected
SUSE Linux Enterprise Server 15 SP1-LTSS libXfont2 Affected
SUSE Linux Enterprise Server 15 SP2 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP2-BCL libXfont2 Affected
SUSE Linux Enterprise Server 15 SP2-LTSS libXfont2 Affected
SUSE Linux Enterprise Server 15 SP3 libXfont2 Affected
SUSE Linux Enterprise Server 15 SP3-BCL libXfont2 Affected
SUSE Linux Enterprise Server 15 SP3-LTSS libXfont2 Affected
SUSE Linux Enterprise Server 15-LTSS libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 15 libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 libXfont2 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 libXfont2 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 libXfont2 Released
SUSE Manager Proxy 4.0 libXfont2 Affected
SUSE Manager Proxy 4.1 libXfont2 Affected
SUSE Manager Proxy 4.2 libXfont2 Affected
SUSE Manager Retail Branch Server 4.0 libXfont2 Affected
SUSE Manager Retail Branch Server 4.1 libXfont2 Affected
SUSE Manager Retail Branch Server 4.2 libXfont2 Affected
SUSE Manager Server 4.0 libXfont2 Affected
SUSE Manager Server 4.1 libXfont2 Affected
SUSE Manager Server 4.2 libXfont2 Affected
SUSE OpenStack Cloud 9 libXfont2 Affected
SUSE OpenStack Cloud Crowbar 9 libXfont2 Affected
openSUSE Leap 15.3 libXfont2 Affected
openSUSE Leap 15.4 libXfont2 Affected
openSUSE Leap 15.5 libXfont2 Affected
openSUSE Leap 15.6 libXfont2 Affected

SUSE Timeline for this CVE

CVE page created: Wed Jun 24 16:15:10 2026
CVE page last modified: Wed Jul 8 13:32:35 2026