National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-12662 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.nxnsattack.com Technical Description
http://www.openwall.com/lists/oss-security/2020/05/19/5 Mailing List Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt Vendor Advisory
https://usn.ubuntu.com/4374-1/
https://www.debian.org/security/2020/dsa-4694
https://www.synology.com/security/advisory/Synology_SA_20_12

Weakness Enumeration

CWE-ID CWE Name Source
CWE-674 Uncontrolled Recursion NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
1.10.1


Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-12662
NVD Published Date:
05/19/2020
NVD Last Modified:
06/01/2020