EulerOS Virtualization for ARM 64 : unbound (EulerOS-SA-2020-1971)

high Nessus Plugin ID 140341


The remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.


According to the versions of the unbound package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

- A flaw was found in unbound in versions prior to 1.10.1. An infinite loop can be created when malformed DNS answers are received from upstream servers. The highest threat from this vulnerability is to system availability.(CVE-2020-12663)

- A network amplification vulnerability was found in Unbound, in the way it processes delegation messages from one authoritative zone to another. This flaw allows an attacker to cause a denial of service or be part of an attack against another DNS server when Unbound is deployed as a recursive resolver or authoritative name server.(CVE-2020-12662)

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.


Update the affected unbound packages.

See Also

Plugin Details

Severity: High

ID: 140341

File Name: EulerOS_SA-2020-1971.nasl

Version: 1.5

Type: local

Published: 9/8/2020

Updated: 2/21/2024

Supported Sensors: Nessus

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-12663


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:unbound-libs, cpe:/o:huawei:euleros:uvp:

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: 9/7/2020

Reference Information

CVE: CVE-2020-12662, CVE-2020-12663