SUSE-SU-2026:4641-1: important: Security update for xen

SLE-SECURITY-UPDATES null at suse.de
Tue Oct 13 20:32:23 UTC 2026 

# Security update for xen

Announcement ID: SUSE-SU-2026:4641-1  
Release Date: 2026-10-13T13:09:07Z  
Rating: important  
References:

  * bsc#1027519
  * bsc#1283321
  * bsc#1283322
  * bsc#1283323
  * bsc#1283325

  
Cross-References:

  * CVE-2026-102700
  * CVE-2026-79609
  * CVE-2026-79610
  * CVE-2026-79611

  
CVSS scores:

  * CVE-2026-102700 ( SUSE ):  5.7
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-102700 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-79609 ( SUSE ):  9.3
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-79609 ( SUSE ):  8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-79610 ( SUSE ):  9.3
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-79610 ( SUSE ):  8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-79611 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-79611 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

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

## Description:

This update for xen fixes the following issues:

Security issues fixed:

  * CVE-2026-79609: x86: XPTI may break on huge-memory systems (bsc#1283321).
  * CVE-2026-79610: grant-table: double version change race (bsc#1283322).
  * CVE-2026-79611: VMX: VMentry failure with branch tracing and blocked states
    (bsc#1283323).
  * CVE-2026-102700: gnttab: cache-flush handling may cause page reference leak
    (bsc#1283325).

Non security issue fixed:

  * Xen: Missing upstream bug fixes (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:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-4641

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-4641

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-4641

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-4641

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-4641

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-4641

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (x86_64)
    * xen-libs-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-4.17.7_02-150500.3.82.1
    * xen-devel-4.17.7_02-150500.3.82.1
    * xen-4.17.7_02-150500.3.82.1
    * xen-tools-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-debuginfo-4.17.7_02-150500.3.82.1
    * xen-debugsource-4.17.7_02-150500.3.82.1
    * xen-libs-4.17.7_02-150500.3.82.1
    * xen-tools-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
    * xen-tools-xendomains-wait-disk-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64)
    * xen-libs-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-4.17.7_02-150500.3.82.1
    * xen-devel-4.17.7_02-150500.3.82.1
    * xen-4.17.7_02-150500.3.82.1
    * xen-tools-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-debuginfo-4.17.7_02-150500.3.82.1
    * xen-debugsource-4.17.7_02-150500.3.82.1
    * xen-libs-4.17.7_02-150500.3.82.1
    * xen-tools-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
    * xen-tools-xendomains-wait-disk-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (x86_64)
    * xen-libs-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-4.17.7_02-150500.3.82.1
    * xen-devel-4.17.7_02-150500.3.82.1
    * xen-4.17.7_02-150500.3.82.1
    * xen-tools-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-debuginfo-4.17.7_02-150500.3.82.1
    * xen-debugsource-4.17.7_02-150500.3.82.1
    * xen-libs-4.17.7_02-150500.3.82.1
    * xen-tools-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
    * xen-tools-xendomains-wait-disk-4.17.7_02-150500.3.82.1
  * openSUSE Leap 15.5 (x86_64)
    * xen-libs-32bit-4.17.7_02-150500.3.82.1
    * xen-4.17.7_02-150500.3.82.1
    * xen-tools-debuginfo-4.17.7_02-150500.3.82.1
    * xen-libs-32bit-debuginfo-4.17.7_02-150500.3.82.1
    * xen-doc-html-4.17.7_02-150500.3.82.1
    * xen-tools-4.17.7_02-150500.3.82.1
  * openSUSE Leap 15.5 (i586 x86_64)
    * xen-libs-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-4.17.7_02-150500.3.82.1
    * xen-devel-4.17.7_02-150500.3.82.1
    * xen-tools-domU-debuginfo-4.17.7_02-150500.3.82.1
    * xen-debugsource-4.17.7_02-150500.3.82.1
    * xen-libs-4.17.7_02-150500.3.82.1
  * openSUSE Leap 15.5 (noarch)
    * xen-tools-xendomains-wait-disk-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise Micro 5.5 (x86_64)
    * xen-debugsource-4.17.7_02-150500.3.82.1
    * xen-libs-4.17.7_02-150500.3.82.1
    * xen-libs-debuginfo-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (x86_64)
    * xen-libs-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-4.17.7_02-150500.3.82.1
    * xen-devel-4.17.7_02-150500.3.82.1
    * xen-4.17.7_02-150500.3.82.1
    * xen-tools-debuginfo-4.17.7_02-150500.3.82.1
    * xen-tools-domU-debuginfo-4.17.7_02-150500.3.82.1
    * xen-debugsource-4.17.7_02-150500.3.82.1
    * xen-libs-4.17.7_02-150500.3.82.1
    * xen-tools-4.17.7_02-150500.3.82.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
    * xen-tools-xendomains-wait-disk-4.17.7_02-150500.3.82.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-102700.html
  * https://www.suse.com/security/cve/CVE-2026-79609.html
  * https://www.suse.com/security/cve/CVE-2026-79610.html
  * https://www.suse.com/security/cve/CVE-2026-79611.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1027519
  * https://bugzilla.suse.com/show_bug.cgi?id=1283321
  * https://bugzilla.suse.com/show_bug.cgi?id=1283322
  * https://bugzilla.suse.com/show_bug.cgi?id=1283323
  * https://bugzilla.suse.com/show_bug.cgi?id=1283325

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