SUSE-SU-2026:4141-1: important: Security update for libvirt
SLE-SECURITY-UPDATES
null at suse.de
Mon Sep 14 12:43:27 UTC 2026
# Security update for libvirt
Announcement ID: SUSE-SU-2026:4141-1
Release Date: 2026-09-14T07:59:03Z
Rating: important
References:
* bsc#1274576
* bsc#1274946
* bsc#1275264
* bsc#1275265
* bsc#1275863
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
* CVE-2026-77159 ( 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-2026-77159 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-77159 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Products:
* SUSE Linux Enterprise High Performance Computing 12 SP5
* SUSE Linux Enterprise Server 12 SP5
* SUSE Linux Enterprise Server 12 SP5 LTSS
* SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
* SUSE Linux Enterprise Server for SAP Applications 12 SP5
An update that solves five vulnerabilities can now be installed.
## Description:
This update for libvirt fixes the following issues:
* CVE-2026-18917: Integer overflow in NodeGetFreePages RPC handler leading to
heap buffer overflow (bsc#1275863).
* CVE-2026-61477: newline injection in network XML DNS TXT/SRV fields allows
dnsmasq config directive injection (bsc#1274576).
* CVE-2026-63622: `swtpm` privilege escalation via symlink following
(bsc#1275264).
* CVE-2026-63623: information disclosure via world-readable storage volume
images during clone/convert (bsc#1275265).
* CVE-2026-77159: root `chown()` on `swtpm` logfile follows symlinks
(bsc#1274946).
## 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 12 SP5 LTSS
zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-4141
* SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-4141
## Package List:
* SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
* libvirt-daemon-driver-network-5.1.0-13.48.1
* libvirt-daemon-driver-storage-logical-5.1.0-13.48.1
* libvirt-daemon-qemu-5.1.0-13.48.1
* libvirt-daemon-driver-storage-mpath-5.1.0-13.48.1
* libvirt-daemon-driver-nwfilter-5.1.0-13.48.1
* libvirt-5.1.0-13.48.1
* libvirt-daemon-driver-storage-scsi-5.1.0-13.48.1
* libvirt-daemon-driver-storage-5.1.0-13.48.1
* libvirt-daemon-lxc-5.1.0-13.48.1
* libvirt-nss-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-lxc-5.1.0-13.48.1
* libvirt-client-debuginfo-5.1.0-13.48.1
* libvirt-admin-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-nodedev-5.1.0-13.48.1
* libvirt-daemon-driver-storage-iscsi-debuginfo-5.1.0-13.48.1
* libvirt-daemon-config-network-5.1.0-13.48.1
* libvirt-libs-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-disk-5.1.0-13.48.1
* libvirt-daemon-driver-storage-disk-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-secret-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-core-5.1.0-13.48.1
* libvirt-daemon-config-nwfilter-5.1.0-13.48.1
* libvirt-daemon-driver-storage-scsi-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-secret-5.1.0-13.48.1
* libvirt-doc-5.1.0-13.48.1
* libvirt-daemon-driver-lxc-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-iscsi-5.1.0-13.48.1
* libvirt-daemon-driver-storage-logical-debuginfo-5.1.0-13.48.1
* libvirt-client-5.1.0-13.48.1
* libvirt-daemon-debuginfo-5.1.0-13.48.1
* libvirt-lock-sanlock-debuginfo-5.1.0-13.48.1
* libvirt-nss-5.1.0-13.48.1
* libvirt-daemon-driver-interface-5.1.0-13.48.1
* libvirt-admin-5.1.0-13.48.1
* libvirt-daemon-5.1.0-13.48.1
* libvirt-debugsource-5.1.0-13.48.1
* libvirt-libs-5.1.0-13.48.1
* libvirt-lock-sanlock-5.1.0-13.48.1
* libvirt-daemon-hooks-5.1.0-13.48.1
* libvirt-daemon-driver-storage-mpath-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-nwfilter-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-nodedev-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-core-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-interface-debuginfo-5.1.0-13.48.1
* libvirt-devel-5.1.0-13.48.1
* libvirt-daemon-driver-network-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-qemu-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-qemu-5.1.0-13.48.1
* SUSE Linux Enterprise Server 12 SP5 LTSS (x86_64)
* libvirt-daemon-xen-5.1.0-13.48.1
* libvirt-daemon-driver-libxl-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-libxl-5.1.0-13.48.1
* SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 x86_64)
* libvirt-daemon-driver-storage-rbd-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-rbd-5.1.0-13.48.1
* SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
* libvirt-daemon-driver-network-5.1.0-13.48.1
* libvirt-daemon-driver-storage-logical-5.1.0-13.48.1
* libvirt-daemon-qemu-5.1.0-13.48.1
* libvirt-daemon-driver-storage-mpath-5.1.0-13.48.1
* libvirt-daemon-driver-nwfilter-5.1.0-13.48.1
* libvirt-5.1.0-13.48.1
* libvirt-daemon-driver-storage-scsi-5.1.0-13.48.1
* libvirt-daemon-driver-storage-rbd-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-5.1.0-13.48.1
* libvirt-daemon-lxc-5.1.0-13.48.1
* libvirt-nss-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-lxc-5.1.0-13.48.1
* libvirt-client-debuginfo-5.1.0-13.48.1
* libvirt-admin-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-nodedev-5.1.0-13.48.1
* libvirt-daemon-driver-storage-iscsi-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-libxl-debuginfo-5.1.0-13.48.1
* libvirt-daemon-config-network-5.1.0-13.48.1
* libvirt-libs-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-disk-5.1.0-13.48.1
* libvirt-daemon-driver-storage-disk-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-secret-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-core-5.1.0-13.48.1
* libvirt-daemon-config-nwfilter-5.1.0-13.48.1
* libvirt-daemon-driver-storage-scsi-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-secret-5.1.0-13.48.1
* libvirt-doc-5.1.0-13.48.1
* libvirt-daemon-driver-lxc-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-iscsi-5.1.0-13.48.1
* libvirt-daemon-driver-storage-logical-debuginfo-5.1.0-13.48.1
* libvirt-client-5.1.0-13.48.1
* libvirt-daemon-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-rbd-5.1.0-13.48.1
* libvirt-lock-sanlock-debuginfo-5.1.0-13.48.1
* libvirt-nss-5.1.0-13.48.1
* libvirt-daemon-driver-interface-5.1.0-13.48.1
* libvirt-admin-5.1.0-13.48.1
* libvirt-daemon-5.1.0-13.48.1
* libvirt-debugsource-5.1.0-13.48.1
* libvirt-libs-5.1.0-13.48.1
* libvirt-lock-sanlock-5.1.0-13.48.1
* libvirt-daemon-hooks-5.1.0-13.48.1
* libvirt-daemon-driver-storage-mpath-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-libxl-5.1.0-13.48.1
* libvirt-daemon-driver-nwfilter-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-nodedev-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-storage-core-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-interface-debuginfo-5.1.0-13.48.1
* libvirt-devel-5.1.0-13.48.1
* libvirt-daemon-driver-network-debuginfo-5.1.0-13.48.1
* libvirt-daemon-driver-qemu-debuginfo-5.1.0-13.48.1
* libvirt-daemon-xen-5.1.0-13.48.1
* libvirt-daemon-driver-qemu-5.1.0-13.48.1
## 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=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
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