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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2955-1 bind9 security update
Debian DLA Debian DLA DLA-2955-2 bind9 regression update
Debian DSA Debian DSA DSA-5105-1 bind9 security update
EUVD EUVD EUVD-2021-12131 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.
Ubuntu USN Ubuntu USN USN-5332-1 Bind vulnerabilities
Ubuntu USN Ubuntu USN USN-5332-2 Bind vulnerability
Fixes

Solution

Upgrade to the patched release most closely related to your current version of BIND: BIND 9.11.37 BIND 9.16.27 BIND 9.18.1 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. BIND 9.11.37-S1 BIND 9.16.27-S1


Workaround

If applicable, modify your configuration to either remove all forwarding or all possibility of recursion. Depending on your use-case, it may be possible to use other zone types to replace forward zones. Active exploits: We are not aware of any active exploits.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: isc

Published:

Updated: 2024-09-16T17:08:54.143Z

Reserved: 2021-01-15T00:00:00

Link: CVE-2021-25220

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-23T13:15:07.680

Modified: 2024-11-21T05:54:34.523

Link: CVE-2021-25220

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-03-16T00:00:00Z

Links: CVE-2021-25220 - Bugzilla

cve-icon OpenCVE Enrichment

No data.