CVE-2020-12662high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
References
https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt
http://www.openwall.com/lists/oss-security/2020/05/19/5
https://www.debian.org/security/2020/dsa-4694
https://www.synology.com/security/advisory/Synology_SA_20_12
https://usn.ubuntu.com/4374-1/
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html
https://security.netapp.com/advisory/ntap-20200702-0006/
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc
https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html
Details
Source: MITRE
Published: 2020-05-19
Updated: 2021-07-21
Type: CWE-674
Risk Information
CVSS v2
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
Configuration 3
OR
Configuration 4
OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Configuration 5
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 151378 | EulerOS Virtualization 3.0.2.2 : unbound (EulerOS-SA-2021-2172) | Nessus | Huawei Local Security Checks | high |
| 146527 | Debian DLA-2556-1 : unbound1.9 security update | Nessus | Debian Local Security Checks | high |
| 146206 | pfSense 2.4.x < 2.4.5-p1 Multiple Vulnerabilities | Nessus | Firewalls | high |
| 145822 | CentOS 8 : unbound (CESA-2020:2416) | Nessus | CentOS Local Security Checks | high |
| 143965 | NewStart CGSL CORE 5.04 / MAIN 5.04 : unbound Multiple Vulnerabilities (NS-SA-2020-0079) | Nessus | NewStart CGSL Local Security Checks | high |
| 142538 | EulerOS Virtualization 3.0.6.6 : unbound (EulerOS-SA-2020-2454) | Nessus | Huawei Local Security Checks | high |
| 142292 | EulerOS 2.0 SP2 : unbound (EulerOS-SA-2020-2403) | Nessus | Huawei Local Security Checks | high |
| 141196 | RHEL 7 : unbound (RHSA-2020:4181) | Nessus | Red Hat Local Security Checks | high |
| 140825 | EulerOS 2.0 SP3 : unbound (EulerOS-SA-2020-2058) | Nessus | Huawei Local Security Checks | high |
| 140341 | EulerOS Virtualization for ARM 64 3.0.2.0 : unbound (EulerOS-SA-2020-1971) | Nessus | Huawei Local Security Checks | high |
| 140154 | EulerOS 2.0 SP5 : unbound (EulerOS-SA-2020-1933) | Nessus | Huawei Local Security Checks | high |
| 140008 | EulerOS Virtualization for ARM 64 3.0.6.0 : unbound (EulerOS-SA-2020-1905) | Nessus | Huawei Local Security Checks | high |
| 139160 | EulerOS 2.0 SP8 : unbound (EulerOS-SA-2020-1830) | Nessus | Huawei Local Security Checks | high |
| 138770 | NewStart CGSL MAIN 6.01 : unbound Multiple Vulnerabilities (NS-SA-2020-0037) | Nessus | NewStart CGSL Local Security Checks | high |
| 138719 | openSUSE Security Update : unbound (openSUSE-2020-913) | Nessus | SuSE Local Security Checks | high |
| 138718 | openSUSE Security Update : unbound (openSUSE-2020-912) | Nessus | SuSE Local Security Checks | high |
| 138313 | SUSE SLES15 Security Update : unbound (SUSE-SU-2020:1819-1) | Nessus | SuSE Local Security Checks | high |
| 138302 | SUSE SLED15 / SLES15 Security Update : unbound (SUSE-SU-2020:1772-1) | Nessus | SuSE Local Security Checks | high |
| 138233 | F5 Networks BIG-IP : Unbound DNS Cache vulnerabilities (K37661551) | Nessus | F5 Networks Local Security Checks | high |
| 137770 | Oracle Linux 6 : unbound (ELSA-2020-2640) | Nessus | Oracle Linux Local Security Checks | high |
| 137743 | Scientific Linux Security Update : unbound on SL7.x x86_64 (20200622) | Nessus | Scientific Linux Local Security Checks | high |
| 137742 | Scientific Linux Security Update : unbound on SL6.x i386/x86_64 (20200622) | Nessus | Scientific Linux Local Security Checks | high |
| 137706 | RHEL 6 : unbound (RHSA-2020:2640) | Nessus | Red Hat Local Security Checks | high |
| 137329 | Photon OS 2.0: Unbound PHSA-2020-2.0-0246 | Nessus | PhotonOS Local Security Checks | high |
| 137294 | Scientific Linux Security Update : unbound on SL7.x x86_64 (20200609) | Nessus | Scientific Linux Local Security Checks | high |
| 137289 | Oracle Linux 8 : unbound (ELSA-2020-2416) | Nessus | Oracle Linux Local Security Checks | high |
| 137281 | CentOS 7 : unbound (CESA-2020:2414) | Nessus | CentOS Local Security Checks | high |
| 137250 | Oracle Linux 7 : unbound (ELSA-2020-2414) | Nessus | Oracle Linux Local Security Checks | high |
| 137239 | RHEL 8 : unbound (RHSA-2020:2419) | Nessus | Red Hat Local Security Checks | high |
| 137238 | RHEL 8 : unbound (RHSA-2020:2416) | Nessus | Red Hat Local Security Checks | high |
| 137236 | RHEL 8 : unbound (RHSA-2020:2418) | Nessus | Red Hat Local Security Checks | high |
| 137204 | RHEL 7 : unbound (RHSA-2020:2414) | Nessus | Red Hat Local Security Checks | high |
| 137111 | Fedora 32 : unbound (2020-3cfd38fefd) | Nessus | Fedora Local Security Checks | high |
| 137096 | Amazon Linux AMI : unbound (ALAS-2020-1373) | Nessus | Amazon Linux Local Security Checks | high |
| 136943 | Ubuntu 18.04 LTS / 19.10 / 20.04 : Unbound vulnerabilities (USN-4374-1) | Nessus | Ubuntu Local Security Checks | high |
| 136937 | Fedora 31 : unbound (2020-8e9b62948e) | Nessus | Fedora Local Security Checks | high |
| 136933 | Debian DSA-4694-1 : unbound - security update | Nessus | Debian Local Security Checks | high |
| 136852 | FreeBSD : unbound -- mutliple vulnerabilities (a2cb7c31-9c79-11ea-a9c2-d05099c0ae8c) | Nessus | FreeBSD Local Security Checks | high |
| 136753 | Amazon Linux 2 : unbound (ALAS-2020-1430) | Nessus | Amazon Linux Local Security Checks | high |