Uncontrolled Recursion

Affecting unbound package, versions <1.9.0-2+deb10u2

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Overview

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

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE
CVE-2020-12662
CWE
CWE-674
Snyk ID
SNYK-DEBIAN10-UNBOUND-569680
Disclosed
19 May, 2020
Published
19 May, 2020