Security update for xen

Announcement ID: SUSE-SU-2025:03172-1
Release Date: 2025-09-11T12:54:02Z
Rating: important
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
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 three vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

Security issues fixed:

  • CVE-2025-27466: NULL pointer dereference in the Viridian interface when updating the reference TSC area (bsc#1248807).
  • CVE-2025-58142: NULL pointer dereference in the Viridian interface due to assumption that the SIM page is mapped when a synthetic timer message has to be delivered (bsc#1248807).
  • CVE-2025-58143: information leak and reference counter underflow in the Viridian interface due to race in the mapping of the reference TSC page (bsc#1248807).

Other issues fixed:

  • efi: Call FreePages() only if needed (bsc#1027519).
  • x86/hpet: do local APIC EOI after interrupt processing (bsc#1027519).
  • x86/hvm/ioreq: Fix condition in hvm_alloc_legacy_ioreq_gfn() (bsc#1027519).
  • x86/idle: Fix the C6 eoi_errata[] list to include NEHALEM_EX (bsc#1027519).
  • x86/iommu: setup MMCFG ahead of IOMMU (bsc#1027519).
  • x86/mce: Adjustments to intel_init_ppin() (bsc#1027519).
  • x86/mkelf32: pad load segment to 2Mb boundary (bsc#1027519).

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:

  • Basesystem Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-3172=1
  • Server Applications Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-3172=1

Package List:

  • Basesystem Module 15-SP7 (x86_64)
    • xen-tools-domU-debuginfo-4.20.1_04-150700.3.11.1
    • xen-libs-4.20.1_04-150700.3.11.1
    • xen-tools-domU-4.20.1_04-150700.3.11.1
    • xen-debugsource-4.20.1_04-150700.3.11.1
    • xen-libs-debuginfo-4.20.1_04-150700.3.11.1
  • Server Applications Module 15-SP7 (x86_64)
    • xen-tools-debuginfo-4.20.1_04-150700.3.11.1
    • xen-4.20.1_04-150700.3.11.1
    • xen-tools-4.20.1_04-150700.3.11.1
    • xen-debugsource-4.20.1_04-150700.3.11.1
    • xen-devel-4.20.1_04-150700.3.11.1
  • Server Applications Module 15-SP7 (noarch)
    • xen-tools-xendomains-wait-disk-4.20.1_04-150700.3.11.1

References: