CVE-2021-25220

Published: 16 March 2022

BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.

Priority

Cvss 3 Severity Score

6.8

Score breakdown

Status

Package	Release	Status
bind9 Launchpad, Ubuntu, Debian	upstream	Released (9.18.1)
	bionic	Released (1:9.11.3+dfsg-1ubuntu1.17)
	focal	Released (1:9.16.1-0ubuntu2.10)
	impish	Released (1:9.16.15-1ubuntu1.2)
	jammy	Released (1:9.18.0-2ubuntu3)

Severity score breakdown

Parameter	Value
Base score	6.8
Attack vector	Network
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

References

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