CVE-2020-12662

EUVD-2020-4961
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 94%
Affected Products (NVD)
VendorProductVersion
nlnetlabsunbound
𝑥
< 1.10.1
debiandebian_linux
9.0
debiandebian_linux
10.0
opensuseleap
15.1
opensuseleap
15.2
canonicalubuntu_linux
18.04
canonicalubuntu_linux
19.10
canonicalubuntu_linux
20.04
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
unbound
bookworm
1.17.1-2+deb12u2
fixed
bookworm (security)
1.17.1-2+deb12u2
fixed
bullseye
1.13.1-1+deb11u2
fixed
bullseye (security)
1.13.1-1+deb11u3
fixed
sid
1.22.0-1
fixed
trixie
1.22.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
unbound
bionic
Fixed 1.6.7-1ubuntu2.3
released
eoan
Fixed 1.9.0-2ubuntu1.1
released
focal
Fixed 1.9.4-2ubuntu1.1
released
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
needed
xenial
needed
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html
http://www.nxnsattack.com
http://www.openwall.com/lists/oss-security/2020/05/19/5
https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc
https://security.netapp.com/advisory/ntap-20200702-0006/
https://usn.ubuntu.com/4374-1/
https://www.debian.org/security/2020/dsa-4694
https://www.synology.com/security/advisory/Synology_SA_20_12
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html
http://www.nxnsattack.com
http://www.openwall.com/lists/oss-security/2020/05/19/5
https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc
https://security.netapp.com/advisory/ntap-20200702-0006/
https://usn.ubuntu.com/4374-1/
https://www.debian.org/security/2020/dsa-4694
https://www.synology.com/security/advisory/Synology_SA_20_12