In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-29469 In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
Ubuntu USN Ubuntu USN USN-4468-1 Bind vulnerabilities
Fixes

Solution

Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.6 BIND 9.17.4


Workaround

No workarounds known.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: isc

Published:

Updated: 2024-09-16T16:18:00.777Z

Reserved: 2020-02-05T00:00:00

Link: CVE-2020-8621

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-08-21T21:15:12.167

Modified: 2024-11-21T05:39:08.490

Link: CVE-2020-8621

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-08-20T00:00:00Z

Links: CVE-2020-8621 - Bugzilla

cve-icon OpenCVE Enrichment

No data.