Security update for xen

Announcement ID: SUSE-SU-2026:2328-1
Release Date: 2026-06-10T07:39:28Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2026-42487 ( SUSE ): 8.8 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • CVE-2026-42487 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-42488 ( SUSE ): 8.7 CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  • CVE-2026-42488 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-42489 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
  • CVE-2026-42489 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
  • CVE-2026-42490 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
  • CVE-2026-42490 ( SUSE ): 4.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • openSUSE Leap 15.5
  • SUSE Linux Enterprise High Performance Computing 15 SP5
  • SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  • SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  • SUSE Linux Enterprise Micro 5.5
  • SUSE Linux Enterprise Server 15 SP5
  • SUSE Linux Enterprise Server 15 SP5 LTSS
  • SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves four vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

  • CVE-2026-42487: x86 HVM I/O port list traversal (bsc#1266952).
  • CVE-2026-42488: x86: mismatched mapcache metadata (bsc#1266955).
  • CVE-2026-42489,CVE-2026-42490: domctl lock open to abuse (bsc#1266953).

Special Instructions and Notes:

  • Please reboot the system after installing this update.

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:

  • openSUSE Leap 15.5
    zypper in -t patch SUSE-2026-2328=1
  • SUSE Linux Enterprise Micro 5.5
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-2328=1
  • SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2328=1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP5
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2328=1
  • SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2328=1
  • SUSE Linux Enterprise Server 15 SP5 LTSS
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2328=1

Package List:

  • openSUSE Leap 15.5 (aarch64 x86_64 i586)
    • xen-tools-domU-4.17.6_12-150500.3.73.1
    • xen-libs-debuginfo-4.17.6_12-150500.3.73.1
    • xen-tools-domU-debuginfo-4.17.6_12-150500.3.73.1
    • xen-debugsource-4.17.6_12-150500.3.73.1
    • xen-libs-4.17.6_12-150500.3.73.1
    • xen-devel-4.17.6_12-150500.3.73.1
  • openSUSE Leap 15.5 (x86_64)
    • xen-libs-32bit-4.17.6_12-150500.3.73.1
    • xen-libs-32bit-debuginfo-4.17.6_12-150500.3.73.1
  • openSUSE Leap 15.5 (aarch64 x86_64)
    • xen-4.17.6_12-150500.3.73.1
    • xen-tools-debuginfo-4.17.6_12-150500.3.73.1
    • xen-doc-html-4.17.6_12-150500.3.73.1
    • xen-tools-4.17.6_12-150500.3.73.1
  • openSUSE Leap 15.5 (noarch)
    • xen-tools-xendomains-wait-disk-4.17.6_12-150500.3.73.1
  • openSUSE Leap 15.5 (aarch64_ilp32)
    • xen-libs-64bit-debuginfo-4.17.6_12-150500.3.73.1
    • xen-libs-64bit-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise Micro 5.5 (x86_64)
    • xen-libs-debuginfo-4.17.6_12-150500.3.73.1
    • xen-debugsource-4.17.6_12-150500.3.73.1
    • xen-libs-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64)
    • xen-tools-domU-4.17.6_12-150500.3.73.1
    • xen-tools-debuginfo-4.17.6_12-150500.3.73.1
    • xen-libs-debuginfo-4.17.6_12-150500.3.73.1
    • xen-tools-domU-debuginfo-4.17.6_12-150500.3.73.1
    • xen-4.17.6_12-150500.3.73.1
    • xen-debugsource-4.17.6_12-150500.3.73.1
    • xen-libs-4.17.6_12-150500.3.73.1
    • xen-tools-4.17.6_12-150500.3.73.1
    • xen-devel-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
    • xen-tools-xendomains-wait-disk-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP5 (x86_64)
    • xen-tools-domU-4.17.6_12-150500.3.73.1
    • xen-tools-debuginfo-4.17.6_12-150500.3.73.1
    • xen-libs-debuginfo-4.17.6_12-150500.3.73.1
    • xen-tools-domU-debuginfo-4.17.6_12-150500.3.73.1
    • xen-4.17.6_12-150500.3.73.1
    • xen-debugsource-4.17.6_12-150500.3.73.1
    • xen-libs-4.17.6_12-150500.3.73.1
    • xen-tools-4.17.6_12-150500.3.73.1
    • xen-devel-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
    • xen-tools-xendomains-wait-disk-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (x86_64)
    • xen-tools-domU-4.17.6_12-150500.3.73.1
    • xen-tools-debuginfo-4.17.6_12-150500.3.73.1
    • xen-libs-debuginfo-4.17.6_12-150500.3.73.1
    • xen-tools-domU-debuginfo-4.17.6_12-150500.3.73.1
    • xen-4.17.6_12-150500.3.73.1
    • xen-debugsource-4.17.6_12-150500.3.73.1
    • xen-libs-4.17.6_12-150500.3.73.1
    • xen-tools-4.17.6_12-150500.3.73.1
    • xen-devel-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
    • xen-tools-xendomains-wait-disk-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise Server 15 SP5 LTSS (x86_64)
    • xen-tools-domU-4.17.6_12-150500.3.73.1
    • xen-tools-debuginfo-4.17.6_12-150500.3.73.1
    • xen-libs-debuginfo-4.17.6_12-150500.3.73.1
    • xen-tools-domU-debuginfo-4.17.6_12-150500.3.73.1
    • xen-4.17.6_12-150500.3.73.1
    • xen-debugsource-4.17.6_12-150500.3.73.1
    • xen-libs-4.17.6_12-150500.3.73.1
    • xen-tools-4.17.6_12-150500.3.73.1
    • xen-devel-4.17.6_12-150500.3.73.1
  • SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
    • xen-tools-xendomains-wait-disk-4.17.6_12-150500.3.73.1

References: