SUSE-SU-2026:3939-1: moderate: Security update for libvirt

SLE-SECURITY-UPDATES null at suse.de
Thu Sep 3 12:46:39 UTC 2026 

# Security update for libvirt

Announcement ID: SUSE-SU-2026:3939-1  
Release Date: 2026-09-03T07:32:06Z  
Rating: moderate  
References:

  * bsc#1266364
  * bsc#1274576
  * bsc#1274946
  * bsc#1275264
  * bsc#1275265
  * bsc#1275863
  * jsc#PED-16192

  
Cross-References:

  * CVE-2026-18917
  * CVE-2026-61477
  * CVE-2026-63622
  * CVE-2026-63623
  * CVE-2026-77159

  
CVSS scores:

  * CVE-2026-18917 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-18917 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-61477 ( SUSE ):  5.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-61477 ( SUSE ):  2.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-61477 ( NVD ):  2.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-63622 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-63622 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-63622 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-63623 ( SUSE ):  5.7
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-63623 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-63623 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 five vulnerabilities, contains one feature and has one
security fix can now be installed.

## Description:

This update for libvirt fixes the following issues:

  * CVE-2026-18917: remote: Fix integer overflow in RPC handler for
    virNodeGetFreePages (bsc#1275863)
  * CVE-2026-63622: util: virFileChownFiles: do not follow symlinks
    (bsc#1275264)
  * CVE-2026-63623: storage: create images with a private umask during qemu-img
    create/convert (bsc#12075265)
  * CVE-2026-77159: qemu: tpm: Avoid following symlinks when chown'ing log file
    (bsc#1274946)
  * CVE-2026-61477: Reject line breaks in network config (bsc#1274576)
  * qemu: Fix invocation of numa-preplace when hugepages requested, but page
    size not specified (bsc#1266364)
  * Add ClearwaterForest CPU model (jsc#PED-16192)

## 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-SP7-2026-3939=1

  * Server Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-3939=1

## Package List:

  * Server Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libvirt-daemon-driver-storage-iscsi-direct-11.0.0-150700.4.27.1
    * libvirt-daemon-proxy-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-iscsi-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-qemu-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-disk-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-scsi-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-secret-11.0.0-150700.4.27.1
    * libvirt-nss-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-common-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-nodedev-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-interface-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-11.0.0-150700.4.27.1
    * libvirt-daemon-lock-11.0.0-150700.4.27.1
    * libvirt-daemon-plugin-sanlock-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-nwfilter-11.0.0-150700.4.27.1
    * libvirt-daemon-config-network-11.0.0-150700.4.27.1
    * libvirt-devel-11.0.0-150700.4.27.1
    * libvirt-daemon-hooks-11.0.0-150700.4.27.1
    * libvirt-daemon-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-common-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-core-11.0.0-150700.4.27.1
    * libvirt-daemon-plugin-sanlock-debuginfo-11.0.0-150700.4.27.1
    * libvirt-debugsource-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-iscsi-11.0.0-150700.4.27.1
    * libvirt-11.0.0-150700.4.27.1
    * libvirt-nss-11.0.0-150700.4.27.1
    * libvirt-client-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-logical-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-nodedev-11.0.0-150700.4.27.1
    * libvirt-daemon-log-11.0.0-150700.4.27.1
    * libvirt-daemon-11.0.0-150700.4.27.1
    * libvirt-client-11.0.0-150700.4.27.1
    * libvirt-daemon-log-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-logical-debuginfo-11.0.0-150700.4.27.1
    * libvirt-client-qemu-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-mpath-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-mpath-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-iscsi-direct-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-proxy-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-nwfilter-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-interface-11.0.0-150700.4.27.1
    * libvirt-daemon-plugin-lockd-11.0.0-150700.4.27.1
    * libvirt-daemon-config-nwfilter-11.0.0-150700.4.27.1
    * libvirt-daemon-qemu-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-core-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-plugin-lockd-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-network-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-scsi-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-disk-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-qemu-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-secret-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-lock-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-network-11.0.0-150700.4.27.1
  * Server Applications Module 15-SP7 (x86_64)
    * libvirt-daemon-xen-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-libxl-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-libxl-11.0.0-150700.4.27.1
  * Server Applications Module 15-SP7 (noarch)
    * libvirt-doc-11.0.0-150700.4.27.1
  * Server Applications Module 15-SP7 (aarch64 x86_64)
    * libvirt-daemon-driver-storage-rbd-debuginfo-11.0.0-150700.4.27.1
    * libvirt-daemon-driver-storage-rbd-11.0.0-150700.4.27.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libvirt-libs-11.0.0-150700.4.27.1
    * libvirt-libs-debuginfo-11.0.0-150700.4.27.1
    * libvirt-debugsource-11.0.0-150700.4.27.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-18917.html
  * https://www.suse.com/security/cve/CVE-2026-61477.html
  * https://www.suse.com/security/cve/CVE-2026-63622.html
  * https://www.suse.com/security/cve/CVE-2026-63623.html
  * https://www.suse.com/security/cve/CVE-2026-77159.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1266364
  * https://bugzilla.suse.com/show_bug.cgi?id=1274576
  * https://bugzilla.suse.com/show_bug.cgi?id=1274946
  * https://bugzilla.suse.com/show_bug.cgi?id=1275264
  * https://bugzilla.suse.com/show_bug.cgi?id=1275265
  * https://bugzilla.suse.com/show_bug.cgi?id=1275863
  * https://jira.suse.com/browse/PED-16192

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