Security update for xwayland

Announcement ID: SUSE-SU-2026:21211-1
Release Date: 2026-04-17T07:57:12Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-33999 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-33999 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
  • CVE-2026-34000 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-34000 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
  • CVE-2026-34001 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-34001 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2026-34002 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-34002 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
  • CVE-2026-34003 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2026-34003 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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 five vulnerabilities can now be installed.

Description:

This update for xwayland fixes the following issues:

  • CVE-2026-33999: XKB Integer Underflow in XkbSetCompatMap() (bsc#1260922).
  • CVE-2026-34000: XKB Out-of-bounds Read in CheckSetGeom() (bsc#1260923).
  • CVE-2026-34001: XSYNC Use-after-free in miSyncTriggerFence() (bsc#1260924).
  • CVE-2026-34002: XKB Out-of-bounds read in CheckModifierMap() (bsc#1260925).
  • CVE-2026-34003: XKB Buffer overflow in CheckKeyTypes() (bsc#1260926).

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 for SAP applications 16.0
    zypper in -t patch SUSE-SLES-16.0-583=1
  • SUSE Linux Enterprise Server 16.0
    zypper in -t patch SUSE-SLES-16.0-583=1

Package List:

  • SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    • xwayland-debugsource-24.1.6-160000.4.1
    • xwayland-24.1.6-160000.4.1
    • xwayland-debuginfo-24.1.6-160000.4.1
    • xwayland-devel-24.1.6-160000.4.1
  • SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    • xwayland-debugsource-24.1.6-160000.4.1
    • xwayland-24.1.6-160000.4.1
    • xwayland-debuginfo-24.1.6-160000.4.1
    • xwayland-devel-24.1.6-160000.4.1

References: