Detections
Analytics

CVE-2020-12662

high

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://www.synology.com/security/advisory/Synology_SA_20_12

https://www.debian.org/security/2020/dsa-4694

https://usn.ubuntu.com/4374-1/

https://security.netapp.com/advisory/ntap-20200702-0006/

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/

https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html

http://www.openwall.com/lists/oss-security/2020/05/19/5

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html

https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt

http://www.nxnsattack.com

Details

Source: Mitre, NVD

Published: 2020-05-19

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5

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

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.09833