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EulerOS Virtualization 3.0.2.0 : libvirt (EulerOS-SA-2021-2847)

medium Nessus Plugin ID 156356

Synopsis

The remote EulerOS Virtualization host is missing a security update.

Description

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

 - A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
 (CVE-2021-3631)

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?d06894c8

Plugin Details

Severity: Medium

ID: 156356

File Name: EulerOS_SA-2021-2847.nasl

Version: 1.5

Type: local

Published: 12/29/2021

Updated: 11/21/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.6

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

CVSS Score Source: CVE-2021-3631

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

Temporal Vector: CVSS:3.0/E:P/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-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-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:3.0.2.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/29/2021

Vulnerability Publication Date: 11/9/2021

Reference Information

CVE: CVE-2021-3631