Security update for xen

Announcement ID: SUSE-SU-2026:0589-1
Release Date: 2026-02-20T10:05:27Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2025-58150 ( SUSE ): 4.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-58150 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-58150 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2026-23553 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVE-2026-23553 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2026-23553 ( NVD ): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products:
  • Basesystem Module 15-SP7
  • Server Applications Module 15-SP7
  • SUSE Linux Enterprise Desktop 15 SP7
  • SUSE Linux Enterprise Real Time 15 SP7
  • SUSE Linux Enterprise Server 15 SP7
  • SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves two vulnerabilities and has one security fix can now be installed.

Description:

This update for xen fixes the following issues:

  • CVE-2025-58150: buffer overrun with shadow paging + tracing (XSA-477) (bsc#1256745).
  • CVE-2026-23553: incomplete IBPB for vCPU isolation (XSA-479) (bsc#1256747).

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:

  • Basesystem Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-589=1
  • Server Applications Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-589=1

Package List:

  • Basesystem Module 15-SP7 (x86_64)
    • xen-tools-domU-4.20.2_06-150700.3.25.1
    • xen-libs-debuginfo-4.20.2_06-150700.3.25.1
    • xen-debugsource-4.20.2_06-150700.3.25.1
    • xen-tools-domU-debuginfo-4.20.2_06-150700.3.25.1
    • xen-libs-4.20.2_06-150700.3.25.1
  • Server Applications Module 15-SP7 (x86_64)
    • xen-4.20.2_06-150700.3.25.1
    • xen-debugsource-4.20.2_06-150700.3.25.1
    • xen-tools-debuginfo-4.20.2_06-150700.3.25.1
    • xen-tools-4.20.2_06-150700.3.25.1
    • xen-devel-4.20.2_06-150700.3.25.1
  • Server Applications Module 15-SP7 (noarch)
    • xen-tools-xendomains-wait-disk-4.20.2_06-150700.3.25.1

References: