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openSUSE Security Notice 2026-2328-1 Significant Updates on Four Xen Risks

opensuse
Calendar Grey June 10, 2026
Dist Opensuse Esm H88
Install the latest openSUSE xen update for important fixes addressing four vulnerabilities promptly.
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.

Topics%20covered

Topics Covered

security advisory update threat important OpenSUSE xen

Patch

## 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...

Read the Full Advisory

References

* bsc#1266952

* bsc#1266953

* bsc#1266955

## References:

* https://www.suse.com/security/cve/CVE-2026-42487.html

* https://www.suse.com/security/cve/CVE-2026-42488.html

* https://www.suse.com/security/cve/CVE-2026-42489.html

* https://www.suse.com/security/cve/CVE-2026-42490.html

* https://bugzilla.suse.com/show_bug.cgi?id=1266952

* https://bugzilla.suse.com/show_bug.cgi?id=1266953

* https://bugzilla.suse.com/show_bug.cgi?id=1266955

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2328-1
Release Date: 2026-06-10T07:39:28Z
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

Topics%20covered

Topics Covered

security advisory update threat important OpenSUSE xen

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