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openSUSE Leap 15.5 Xen Moderate Issues CVE-2025-58150 2026-0304-1

opensuse
Calendar Grey January 28, 2026
Dist Opensuse Esm H88
Update for openSUSE fixes two vulnerabilities in Xen affecting system security and stability.
An update that solves two vulnerabilities can now be installed.

Description

This update for xen fixes the following issues:

* CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing

(XSA-477) (bsc#1256745)

* CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation (XSA-479)

(bsc#1256747)

## Special Instructions and Notes:

* Please reboot the system after installing this update.

Topics%20covered

Topics Covered

security advisory moderate buffer overrun OpenSUSE xen vcpu isolation

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-2026-304=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-304=1

Package List

* openSUSE Leap 15.5 (aarch64 x86_64 i586)

* xen-tools-domU-debuginfo-4.17.6_04-150500.3.59.1

* xen-libs-debuginfo-4.17.6_04-150500.3.59.1

* xen-debugsource-4.17.6_04-150500.3.59.1

* xen-devel-4.17.6_04-150500.3.59.1

* xen-tools-domU-4.17.6_04-150500.3.59.1

* xen-libs-4.17.6_04-150500.3.59.1

* openSUSE Leap 15.5 (x86_64)

* xen-libs-32bit-debuginfo-4.17.6_04-150500.3.59.1

* xen-libs-32bit-4.17.6_04-150500.3.59.1

* openSUSE Leap 15.5 (aarch64 x86_64)

* xen-tools-4.17.6_04-150500.3.59.1

* xen-4.17.6_04-150500.3.59.1

* xen-tools-debuginfo-4.17.6_04-150500.3.59.1

* xen-doc-html-4.17.6_04-150500.3.59.1

* openSUSE Leap 15.5 (noarch)

* xen-tools-xendomains-wait-disk-4.17.6_04-150500.3.59.1

* openSUSE Leap 15.5 (aarch64_ilp32)

* xen-libs-64bit-debuginfo-4.17.6_04-150500.3.59.1

* xen-libs-64bit-4.17.6_04-150500.3.59.1

* SUSE Linux Enterprise Micro 5.5 (x86_64)

* xen-libs-4.17.6_04-150500.3.59.1

* xen-libs-debuginfo-4.17.6_04-150500.3.59.1

* xen-debugsource-4.17.6_04-150500.3.59.1

References

* bsc#1256745

* bsc#1256747

## References:

* https://www.suse.com/security/cve/CVE-2025-58150.html

* https://www.suse.com/security/cve/CVE-2026-23553.html

* https://bugzilla.suse.com/show_bug.cgi?id=1256745

* https://bugzilla.suse.com/show_bug.cgi?id=1256747

Announcement ID: SUSE-SU-2026:0304-1
Release Date: 2026-01-27T16:14:51Z
Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise Micro 5.5

Topics%20covered

Topics Covered

security advisory moderate buffer overrun OpenSUSE xen vcpu isolation

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