SUSE SLES15: libvirt / libvirt-client / libvirt-client-qemu / libvirt-daemon / etc (SUSE-SU-2026:4009-1)

high Nessus Plugin ID 348448

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4009-1 advisory.

- 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).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 348448

File Name: suse_SU-2026-4009-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 9/21/2026

Updated: 9/21/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.19

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:C/A:N

CVSS Score Source: CVE-2026-77159

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-63622

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libvirt-client-qemu, p-cpe:/a:novell:suse_linux:libvirt-client, p-cpe:/a:novell:suse_linux:libvirt-daemon-config-network, p-cpe:/a:novell:suse_linux:libvirt-daemon-config-nwfilter, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-interface, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-libxl, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-network, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-nodedev, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-nwfilter, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-qemu, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-secret, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-core, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-disk, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-iscsi-direct, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-logical, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-mpath, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-rbd, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-scsi, p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage, p-cpe:/a:novell:suse_linux:libvirt-daemon-hooks, p-cpe:/a:novell:suse_linux:libvirt-daemon-qemu, p-cpe:/a:novell:suse_linux:libvirt-daemon-xen, p-cpe:/a:novell:suse_linux:libvirt-daemon, p-cpe:/a:novell:suse_linux:libvirt-devel, p-cpe:/a:novell:suse_linux:libvirt-doc, p-cpe:/a:novell:suse_linux:libvirt-libs, p-cpe:/a:novell:suse_linux:libvirt-lock-sanlock, p-cpe:/a:novell:suse_linux:libvirt-nss, p-cpe:/a:novell:suse_linux:libvirt

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/7/2026

Vulnerability Publication Date: 8/7/2026

Reference Information

CVE: CVE-2026-18917, CVE-2026-61477, CVE-2026-63622, CVE-2026-63623, CVE-2026-77159

SuSE: SUSE-SU-2026:4009-1

Detections

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