Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2020-12662

Disclosure Date: May 19, 2020
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • canonical,
  • debian,
  • fedoraproject,
  • nlnetlabs,
  • opensuse

Products

  • debian linux 10.0,
  • debian linux 9.0,
  • fedora 31,
  • fedora 32,
  • leap 15.1,
  • leap 15.2,
  • ubuntu linux 18.04,
  • ubuntu linux 19.10,
  • ubuntu linux 20.04,
  • unbound

References

Additional Info

Technical Analysis