EulerOS Virtualization 3.0.1.0 : libvirt (EulerOS-SA-2019-1456)

high Nessus Plugin ID 124959
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the libvirt packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

- util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.(CVE-2018-6764)

- qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory consumption) via a large QEMU reply.(CVE-2018-5748)

- libvirt version 2.3.0 and later is vulnerable to a bad default configuration of 'verify-peer=no' passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default. (CVE-2019-3840)

- libvirt version 2.3.0 and later is vulnerable to a bad default configuration of 'verify-peer=no' passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.(CVE-2017-1000256)

- An incomplete fix for CVE-2018-5748 that affects QEMU monitor leading to a resource exhaustion but now also triggered via QEMU guest agent.(CVE-2018-1064)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libvirt packages.

See Also

http://www.nessus.org/u?3b8443dc

Plugin Details

Severity: High

ID: 124959

File Name: EulerOS_SA-2019-1456.nasl

Version: 1.6

Type: local

Published: 5/14/2019

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libvirt, p-cpe:/a:huawei:euleros:libvirt-admin, p-cpe:/a:huawei:euleros:libvirt-client, p-cpe:/a:huawei:euleros:libvirt-daemon, p-cpe:/a:huawei:euleros:libvirt-daemon-config-network, p-cpe:/a:huawei:euleros:libvirt-daemon-config-nwfilter, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-interface, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-network, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-nodedev, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-nwfilter, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-qemu, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-secret, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-core, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-disk, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-gluster, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-logical, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-mpath, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-rbd, p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-scsi, p-cpe:/a:huawei:euleros:libvirt-daemon-kvm, p-cpe:/a:huawei:euleros:libvirt-devel, p-cpe:/a:huawei:euleros:libvirt-docs, p-cpe:/a:huawei:euleros:libvirt-libs, cpe:/o:huawei:euleros:uvp:3.0.1.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2019

Reference Information

CVE: CVE-2017-1000256, CVE-2018-1064, CVE-2018-5748, CVE-2018-6764, CVE-2019-3840