Security update for xen

Announcement ID: SUSE-SU-2026:0303-1
Release Date: 2026-01-27T16:14:45Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2025-27466 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2025-27466 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-58142 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2025-58142 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-58143 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-58143 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-58149 ( SUSE ): 4.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
  • CVE-2025-58149 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2025-58149 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • 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-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
Affected Products:
  • openSUSE Leap 15.3
  • SUSE Linux Enterprise Micro 5.2
  • SUSE Linux Enterprise Micro for Rancher 5.2

An update that solves six vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

Security fixes:

  • 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)
  • CVE-2025-58149: Fixed incorrect removal od permissions on PCI device unplug allow PV guests to access memory of devices no longer assigned to it (XSA-476) (bsc#1252692)
  • CVE-2025-27466, CVE-2025-58142, CVE-2025-58143: Fixed multiple vulnerabilities in the Viridian interface (XSA-472) (bsc#1248807)

Other fixes:

  • Fixed virtxend service restart. Caused by a failure to start xenstored (bsc#1254180)

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 15.3
    zypper in -t patch SUSE-2026-303=1
  • SUSE Linux Enterprise Micro 5.2
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-303=1
  • SUSE Linux Enterprise Micro for Rancher 5.2
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-303=1

Package List:

  • openSUSE Leap 15.3 (aarch64 x86_64 i586)
    • xen-debugsource-4.14.6_28-150300.3.94.1
    • xen-devel-4.14.6_28-150300.3.94.1
    • xen-tools-domU-debuginfo-4.14.6_28-150300.3.94.1
    • xen-libs-4.14.6_28-150300.3.94.1
    • xen-libs-debuginfo-4.14.6_28-150300.3.94.1
    • xen-tools-domU-4.14.6_28-150300.3.94.1
  • openSUSE Leap 15.3 (x86_64)
    • xen-libs-32bit-4.14.6_28-150300.3.94.1
    • xen-libs-32bit-debuginfo-4.14.6_28-150300.3.94.1
  • openSUSE Leap 15.3 (aarch64 x86_64)
    • xen-tools-debuginfo-4.14.6_28-150300.3.94.1
    • xen-doc-html-4.14.6_28-150300.3.94.1
    • xen-4.14.6_28-150300.3.94.1
    • xen-tools-4.14.6_28-150300.3.94.1
  • openSUSE Leap 15.3 (noarch)
    • xen-tools-xendomains-wait-disk-4.14.6_28-150300.3.94.1
  • openSUSE Leap 15.3 (aarch64_ilp32)
    • xen-libs-64bit-debuginfo-4.14.6_28-150300.3.94.1
    • xen-libs-64bit-4.14.6_28-150300.3.94.1
  • SUSE Linux Enterprise Micro 5.2 (x86_64)
    • xen-debugsource-4.14.6_28-150300.3.94.1
    • xen-libs-4.14.6_28-150300.3.94.1
    • xen-libs-debuginfo-4.14.6_28-150300.3.94.1
  • SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
    • xen-debugsource-4.14.6_28-150300.3.94.1
    • xen-libs-4.14.6_28-150300.3.94.1
    • xen-libs-debuginfo-4.14.6_28-150300.3.94.1

References: