SUSE alert SUSE-SU-2026:2428-1 (LibVNCServer)

From:
             
 
SLE-SECURITY-UPDATES <null@suse.de>
To:
             
 
sle-security-updates@lists.suse.com
Subject:
             
 
SUSE-SU-2026:2428-1: important: Security update for LibVNCServer
Date:
             
 
Wed, 17 Jun 2026 16:30:45 -0000
Message-ID:
             
 
<178171384549.19795.17214656139464199554@d93ac1748d57>
# Security update for LibVNCServer

Announcement ID: SUSE-SU-2026:2428-1  
Release Date: 2026-06-17T09:50:36Z  
Rating: important  
References:

  * bsc#1266459

  
Cross-References:

  * CVE-2026-44988

  
CVSS scores:

  * CVE-2026-44988 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-44988 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-44988 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for LibVNCServer fixes the following issues:

  * CVE-2026-44988: Fixed missing validation of rectangle width in tight
    gradient decoding can lead to server-triggered out-of-bounds write
    (bsc#1266459).

## 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 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2428=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2428=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * libvncclient0-0.9.9-17.47.1
    * libvncserver0-debuginfo-0.9.9-17.47.1
    * LibVNCServer-devel-0.9.9-17.47.1
    * libvncclient0-debuginfo-0.9.9-17.47.1
    * libvncserver0-0.9.9-17.47.1
    * LibVNCServer-debugsource-0.9.9-17.47.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * libvncclient0-0.9.9-17.47.1
    * libvncserver0-debuginfo-0.9.9-17.47.1
    * LibVNCServer-devel-0.9.9-17.47.1
    * libvncclient0-debuginfo-0.9.9-17.47.1
    * libvncserver0-0.9.9-17.47.1
    * LibVNCServer-debugsource-0.9.9-17.47.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-44988.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1266459



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