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

CVE-2021-25214

Disclosure Date: April 28, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In BIND 9.8.5 –> 9.8.8, 9.9.3 –> 9.11.29, 9.12.0 –> 9.16.13, and versions BIND 9.9.3-S1 –> 9.11.29-S1 and 9.16.8-S1 –> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 –> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.

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CVSS V3 Severity and Metrics
Base Score:
6.5 Medium
Impact Score:
3.6
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • debian,
  • fedoraproject,
  • isc,
  • netapp,
  • siemens

Products

  • active iq unified manager -,
  • aff 500f firmware -,
  • aff a250 firmware -,
  • bind,
  • bind 9.10.5,
  • bind 9.10.7,
  • bind 9.11.12,
  • bind 9.11.21,
  • bind 9.11.27,
  • bind 9.11.29,
  • bind 9.11.3,
  • bind 9.11.5,
  • bind 9.11.6,
  • bind 9.11.7,
  • bind 9.11.8,
  • bind 9.16.11,
  • bind 9.16.13,
  • bind 9.16.8,
  • bind 9.9.12,
  • bind 9.9.13,
  • bind 9.9.3,
  • cloud backup -,
  • debian linux 10.0,
  • debian linux 9.0,
  • fedora 33,
  • fedora 34,
  • h300e firmware -,
  • h300s firmware -,
  • h410s firmware -,
  • h500e firmware -,
  • h500s firmware -,
  • h700e firmware -,
  • h700s firmware -,
  • sinec infrastructure network services

Additional Info

Technical Analysis