PT-2020-13191 · Nlnet+7 · Unbound+7

Anat Bremler-Barr + 2 · Published 2020-05-19 · Updated 2024-06-15 · CVE-2020-12662

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Unbound versions prior to 1.10.1

Description The issue is related to Insufficient Control of Network Message Volume, also known as an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.

Recommendations For versions prior to 1.10.1, update to version 1.10.1 or later to resolve the issue.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALT-PU-2020-1991

ALT-PU-2020-2007

AZL-6929

CESA-2020_2414

CESA-2020_2416

CVE-2020-12662

DLA-2556-1

DSA-4694-1

FREEBSD-SA-20_19

MGASA-2020-0224

OPENSUSE-SU-2020:0912-1

OPENSUSE-SU-2020:0913-1

OPENSUSE-SU-2020_0912-1

OPENSUSE-SU-2020_0913-1

OPENSUSE-SU-2024:11005-1

RHSA-2020:2414

RHSA-2020:2416

RHSA-2020:2418

RHSA-2020:2419

RHSA-2020:2640

RHSA-2020:4181

RHSA-2020_2414

RHSA-2020_2416

RHSA-2020_2640

SUSE-SU-2020:1772-1

SUSE-SU-2020:1819-1

USN-4374-1

Affected Products

Alt Linux

Centos

Freebsd

Linuxmint

Red Hat

Suse

Ubuntu

Unbound

References · 58

• https://osv.dev/vulnerability/USN-4374-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11005-1 · Vendor Advisory
• https://debian.org/security/2020/dsa-4694 · Vendor Advisory
• https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:0913-1 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2020-0224 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-6929 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-12663 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1819-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-12662 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html · Vendor Advisory
• https://security.freebsd.org/advisories/FreeBSD-SA-20:19.unbound.asc · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-12662 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4374-1 · Vendor Advisory