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openSUSE 17.0 SUSE-SU-2026-0920-4 Critical Resolution for Xen Issues

suse
Calendar Grey March 17, 2026
Dist Suse Esm H88
Critical update available for SUSE Xen addressing two significant security threats, ensuring system integrity and performance.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for xen fixes the following issues: * CVE-2026-23554: xen: Use after free of paging structures in EPT (bsc#1259247, XSA-480) * CVE-2026-23555: xen: Xenstored DoS by unprivileged domain (bsc#1259248, XSA-481) ## 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 15.6 zypper in -t patch openSUSE-SLE-15.6-2026-908=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-908=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-908=1 ## Package List: * openSUSE Leap 15.6 (aarch64 x86_64)

Topics%20covered

Topics Covered

security advisory denial of service update important OpenSUSE xen

References

* bsc#1259247

* bsc#1259248

Cross-

* CVE-2026-23554

* CVE-2026-23555

CVSS scores:

* CVE-2026-23554 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-23554 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-23555 ( SUSE ): 8.2

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

* CVE-2026-23555 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected Products:

* openSUSE Leap 15.6

* SUSE Linux Enterprise Server 15 SP6

* SUSE Linux Enterprise Server 15 SP6 LTSS

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves two vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-23554.html

* https://www.suse.com/security/cve/CVE-2026-23555.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0908-1
Release Date: 2026-03-17T16:32:42Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service update important OpenSUSE xen

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